{"id":231024,"date":"2025-12-30T15:24:57","date_gmt":"2025-12-30T09:54:57","guid":{"rendered":"https:\/\/www.oliveboard.in\/blog\/?p=231024"},"modified":"2025-12-30T15:25:35","modified_gmt":"2025-12-30T09:55:35","slug":"ssc-jso-statistics-paper-most-important-questions","status":"publish","type":"post","link":"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/","title":{"rendered":"SSC CGL JSO Statistics Paper, Most Imp Questions &amp; Topic Weightage"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_77 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of content<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#SSC_CGL_JSO_Most_Important_Questions\" >SSC CGL JSO Most Important Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#SSC_JSO_Topic-wise_Weightage_Approximate\" >SSC JSO Topic-wise Weightage (Approximate)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#SSC_CGL_JSO_Statistics_Syllabus_2025\" >SSC CGL JSO Statistics Syllabus 2025<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#SSC_CGL_JSO_Paper_Overview\" >SSC CGL JSO Paper Overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#Key_Takeaways\" >Key Takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-statistics-paper-most-important-questions\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>The SSC CGL Junior Statistical Officer (JSO) paper is an important part of Paper II of Tier 2, designed to test a candidate\u2019s understanding of applied statistics and data interpretation. If you\u2019re preparing for SSC CGL Tier 2 (Statistics section), knowing the syllabus, weightage, and key topics is important for scoring high.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ssc-cgl-jso-most-important-questions\"><span class=\"ez-toc-section\" id=\"SSC_CGL_JSO_Most_Important_Questions\"><\/span><strong>SSC CGL JSO Most Important <\/strong>Questions <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Statistics is a key section in SSC CGL <a href=\"https:\/\/www.oliveboard.in\/ssc-jso\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Junior Statistical Officer<\/a> Paper 2. Here are 20 most important questions on topics like Central Tendency, Probability, Correlation, Sampling, Time Series, and Inference, designed at Tier 2 difficulty, with answers for quick practice.<\/p>\n\n\n\n<p><strong>Q1. If the mean of 5 numbers is 12 and one number is replaced by 20, the new mean becomes 14. Find the number replaced.<\/strong><br>A) 6<br>B) 8<br>C) 10<br>D) 12<br><strong>Answer: B) 8<\/strong><\/p>\n\n\n\n<p><strong>Q2. For a continuous random variable X with pdf f(x) = kx\u00b2 for 0 \u2264 x \u2264 2, find k.<\/strong><br>A) 1<br>B) 3\/8<br>C) 2\/3<br>D) 1\/4<br><strong>Answer: B) 3\/8<\/strong><\/p>\n\n\n\n<p><strong>Q3. The coefficient of skewness (Karl Pearson) for a distribution with mean = 50, median = 47, and standard deviation = 4 is:<\/strong><br>A) 0.75<br>B) 0.5<br>C) 0.25<br>D) 1<br><strong>Answer: A) 0.75<\/strong><\/p>\n\n\n\n<p><strong>Q4. If two variables X and Y have a correlation coefficient of 0.8, then the coefficient of determination is:<\/strong><br>A) 0.64<br>B) 0.80<br>C) 0.36<br>D) 0.72<br><strong>Answer: A) 0.64<\/strong><\/p>\n\n\n\n<p><strong>Q5. If the variance of X is 16, what is the variance of 3X + 5?<\/strong><br>A) 16<br>B) 48<br>C) 144<br>D) 21<br><strong>Answer: C) 144<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/ssc-cgl-mock-test\/?ref=contmk-scsc\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt Free SSC CGL Tier 2 Mock Test<\/a><\/div>\n<\/div>\n\n\n\n<p><strong>Q6. The Spearman\u2019s rank correlation coefficient between two variables with tied ranks can be calculated using:<\/strong><br>A) Pearson correlation formula<br>B) Difference of ranks formula<br>C) Regression formula<br>D) None of these<br><strong>Answer: B) Difference of ranks formula<\/strong><\/p>\n\n\n\n<p><strong>Q7. In a two-way ANOVA with r = 3 rows and c = 4 columns, the degrees of freedom for interaction is:<\/strong><br>A) 6<br>B) 2<br>C) 8<br>D) 1<br><strong>Answer: A) 6<\/strong><\/p>\n\n\n\n<p><strong>Q8. A sample of 100 observations has a mean of 50 and SD of 10. The standard error of the mean is:<\/strong><br>A) 1<br>B) 10<br>C) 0.1<br>D) 5<br><strong>Answer: A) 1<\/strong><\/p>\n\n\n\n<p><strong>Q9. For a binomial distribution with n = 10 and p = 0.5, variance is:<br><\/strong>A) 2.5<br>B) 5<br>C) 10<br>D) 1<br><strong>Answer: A) 2.5<\/strong><\/p>\n\n\n\n<p><strong>Q10. If the probability of A = 0.4, probability of B = 0.5, and P(A \u2229 B) = 0.2, then P(A | B) = ?<br><\/strong>A) 0.2<br>B) 0.4<br>C) 0.5<br>D) 0.6<br><strong>Answer: B) 0.4<\/strong><\/p>\n\n\n\n<p>SSC CGL Tier 1 Result Out, Check your result <a href=\"https:\/\/www.oliveboard.in\/ssc-cgl-result\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Here<\/a><\/p>\n\n\n\n<p><strong>Q11. For a binomial distribution with n = 10 and p = 0.5, variance is:<br><\/strong>A) 2.5<br>B) 5<br>C) 10<br>D) 1<br><strong>Answer: A) 2.5<\/strong><\/p>\n\n\n\n<p><strong>Q12. The probability generating function (PGF) of a Poisson variable with mean \u03bb is:<br><\/strong>A) e^(\u03bb(t\u22121))<br>B) \u03bb(1 \u2212 t)<br>C) e^(\u2212\u03bbt)<br>D) (1 \u2212 p + pt)^n<\/p>\n\n\n\n<p><strong>Answer: A) e^(\u03bb(t\u22121))<\/strong><\/p>\n\n\n\n<p><strong>Q13. If Q1 = 20, Q3 = 40, and median = 30, then Bowley\u2019s coefficient of skewness is:<br><\/strong>A) 0<br>B) 0.2<br>C) 0.25<br>D) 0.1<br><strong>Answer: A) 0<\/strong><\/p>\n\n\n\n<p><strong>Q14. In regression analysis, the sum of residuals is:<br><\/strong>A) Equal to 1<br>B) Equal to zero<br>C) Positive<br>D) Negative<br><strong>Answer: B) Equal to zero<\/strong><\/p>\n\n\n\n<p><strong>Q15. For a normal distribution N(\u03bc, \u03c3\u00b2), the probability that X lies within \u03bc \u00b1 2\u03c3 is approximately:<br><\/strong>A) 68%<br>B) 95%<br>C) 99%<br>D) 90%<\/p>\n\n\n\n<p><strong>Answer: B) 95%<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/ssc-cgl-previous-year-papers\/?ref=contmk-db\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt SSC CGL PYPs Online<\/a><\/div>\n<\/div>\n\n\n\n<p><strong>Q16. For a sample of size n from a population, the unbiased estimator of population variance is:<br><\/strong>A) \u03a3(xi \u2212 x\u0304)^2 \/ n<br>B) \u03a3(xi \u2212 x\u0304)^2 \/ (n \u2212 1)<br>C) \u03a3(xi \u2212 x\u0304)^2 \/ (n + 1)<br>D) \u03a3(xi^2)<\/p>\n\n\n\n<p><strong>Answer: B) \u03a3(xi \u2212 x\u0304)^2 \/ (n \u2212 1)<\/strong><\/p>\n\n\n\n<p><strong>Q17. In a Poisson distribution, the probability of exactly 2 events is 0.224. If the mean is 2, what is P(X = 2) = e^(\u2212\u03bb) * \u03bb\u00b2 \/ 2!?<\/strong><\/p>\n\n\n\n<p>A) 0.224<br>B) 0.270<br>C) 0.180<br>D) 0.250<\/p>\n\n\n\n<p><strong>Answer: A) 0.224<\/strong><\/p>\n\n\n\n<p><strong>Q18. If a time series has seasonal variation, it can be removed by:<br><\/strong>A) Differencing<br>B) Smoothing<br>C) Seasonal Index<br>D) Regression<br><strong>Answer: C) Seasonal Index<\/strong><\/p>\n\n\n\n<p><strong>Q19. If population size N = 1000 and sample size n = 100, the sampling fraction is:<br><\/strong>A) 1%<br>B) 10%<br>C) 50%<br>D) 100%<br><strong>Answer: B) 10%<\/strong><\/p>\n\n\n\n<p><strong>Q20. The Chi-square test is used for:<br><\/strong>A) Mean testing<br>B) Proportion testing<br>C) Goodness of fit and independence testing<br>D) Regression<br><strong>Answer: C) Goodness of fit and independence testing<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.oliveboard.in\/ssc-cgl-tier-2-2025-complete-practice-course-english-medium-2065\/?ref=contmk-blogs\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"200\" src=\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/12\/251206-1765004466-ssc_cgl_tier_2_practice_course_english-desktop.webp\" alt=\"\" class=\"wp-image-233970\" srcset=\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/12\/251206-1765004466-ssc_cgl_tier_2_practice_course_english-desktop.webp 900w, https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/12\/251206-1765004466-ssc_cgl_tier_2_practice_course_english-desktop-768x171.webp 768w, https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/12\/251206-1765004466-ssc_cgl_tier_2_practice_course_english-desktop-150x33.webp 150w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ssc-jso-topic-wise-weightage-approximate\"><span class=\"ez-toc-section\" id=\"SSC_JSO_Topic-wise_Weightage_Approximate\"><\/span>SSC JSO <strong>Topic-wise Weightage (Approximate)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the SSC CGL\/JSO Statistics Paper, different topics carry different marks. Knowing the expected weightage of each topic can help you plan your preparation and focus on high-scoring areas. The table below shows the approximate marks for each important topic in the exam.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><strong>Topic<\/strong><\/strong><\/td><td><strong><strong>Expected Weightage<\/strong><\/strong><\/td><\/tr><tr><td>Measures of Central Tendency &amp; Dispersion<\/td><td>10-12 marks<\/td><\/tr><tr><td>Correlation &amp; Regression<\/td><td>10-15 marks<\/td><\/tr><tr><td>Probability &amp; Probability Distributions<\/td><td>15-20 marks<\/td><\/tr><tr><td>Sampling Theory<\/td><td>8-10 marks<\/td><\/tr><tr><td>Statistical Inference<\/td><td>20-25 marks<\/td><\/tr><tr><td>Time Series &amp; Index Numbers<\/td><td>10-15 marks<\/td><\/tr><tr><td>Moments, Skewness, Kurtosis<\/td><td>5-8 marks<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/ssc-cgl-free-pyp-kit\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Download SSC CGL Tier 2 Free PYP Kit<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ssc-cgl-jso-statistics-syllabus-2025\"><span class=\"ez-toc-section\" id=\"SSC_CGL_JSO_Statistics_Syllabus_2025\"><\/span><strong>SSC CGL JSO Statistics Syllabus 2025<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The Statistics syllabus according to the <a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-exam-pattern\/?ref=contmk-blogs\">SSC JSO Exam Pattern<\/a> is divided into key topics that test your conceptual clarity and application skills. <\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><strong>Unit<\/strong><\/strong><\/td><td><strong><strong>Topic<\/strong><\/strong><\/td><\/tr><tr><td><strong>1. <a href=\"https:\/\/www.oliveboard.in\/blog\/collection-classification-and-presentation-of-data-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Collection, Classification &amp; Presentation of Statistical Data<\/a><\/strong><\/td><td>Meaning, types of data, primary &amp; secondary data, frequency distribution, tabulation, diagrammatic representation.<\/td><\/tr><tr><td><strong>2. <a href=\"https:\/\/www.oliveboard.in\/blog\/measures-of-central-tendency-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Measures of Central Tendency<\/a><\/strong><\/td><td>Mean, Median, Mode, Geometric &amp; Harmonic Mean, Weighted Mean.<\/td><\/tr><tr><td><strong>3. <a href=\"https:\/\/www.oliveboard.in\/blog\/measures-of-dispersion-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Measures of Dispersion<\/a><\/strong><\/td><td>Range, Quartile Deviation, Mean Deviation, Standard Deviation, Coefficient of Variation.<\/td><\/tr><tr><td><strong>4. <a href=\"https:\/\/www.oliveboard.in\/blog\/moments-skewness-and-kurtosis-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Moments, Skewness &amp; Kurtosis<\/a><\/strong><\/td><td>Types of moments, coefficient of skewness, coefficient of kurtosis, shape of distribution.<\/td><\/tr><tr><td><strong>5. <a href=\"https:\/\/www.oliveboard.in\/blog\/correlation-and-regression-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Correlation &amp; Regression<\/a><\/strong><\/td><td>Scatter diagrams, Karl Pearson\u2019s coefficient, Spearman\u2019s rank correlation, regression lines, multiple correlation.<\/td><\/tr><tr><td><strong>6. <a href=\"https:\/\/www.oliveboard.in\/blog\/probability-theory-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Probability Theory<\/a><\/strong><\/td><td>Basic definitions, addition &amp; multiplication theorems, conditional probability, Bayes\u2019 theorem.<\/td><\/tr><tr><td><strong>7. <a href=\"https:\/\/www.oliveboard.in\/blog\/random-variables-and-probability-distribultions-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Random Variables &amp; Probability Distributions<\/a><\/strong><\/td><td>Random variables, binomial, Poisson, normal, exponential, and joint distributions.<\/td><\/tr><tr><td><strong>8. <a href=\"https:\/\/www.oliveboard.in\/blog\/sampling-theory-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Sampling Theory<\/a><\/strong><\/td><td>Population and sample, sampling techniques, errors, sampling distributions, central limit theorem.<\/td><\/tr><tr><td><strong>9. <a href=\"https:\/\/www.oliveboard.in\/blog\/statistical-inference-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Statistical Inference<\/a><\/strong><\/td><td>Estimation, testing of hypotheses, standard errors, t-test, z-test, chi-square test, F-test.<\/td><\/tr><tr><td><strong>10. <a href=\"https:\/\/www.oliveboard.in\/blog\/analysis-of-variance-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Analysis of <strong>Variance<\/strong><\/a><\/strong><\/td><td>One-way classification, Two-way classification<\/td><\/tr><tr><td><strong>11.<\/strong> <strong><a href=\"https:\/\/www.oliveboard.in\/blog\/time-series-analysis-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Time Series Analysis<\/a><\/strong><\/td><td>Trend determination, Seasonal variation<\/td><\/tr><tr><td><strong>12. <a href=\"https:\/\/www.oliveboard.in\/blog\/index-numbers-for-ssc-cgl\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Index Numbers<\/a><\/strong><\/td><td>Construction, Types, Formulae, Uses (e.g., cost of living index)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/ssc-typing-test\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Attempt Free CGL Typing Test<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ssc-cgl-jso-paper-overview\"><span class=\"ez-toc-section\" id=\"SSC_CGL_JSO_Paper_Overview\"><\/span><strong>SSC CGL JSO Paper Overview<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Below are the details of SSC JSO Exam:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>Details<\/strong><\/td><\/tr><tr><td><strong>Paper Name<\/strong><\/td><td>SSC CGL Tier 2 Paper II \u2013 Statistics (for JSO)<\/td><\/tr><tr><td><strong>Mode of Exam<\/strong><\/td><td>Online (Computer-Based Test)<\/td><\/tr><tr><td><strong>Total Marks<\/strong><\/td><td>200<\/td><\/tr><tr><td><strong>No. of Questions<\/strong><\/td><td>100<\/td><\/tr><tr><td><strong>Time Duration<\/strong><\/td><td>2 Hours<\/td><\/tr><tr><td><strong>Type of Questions<\/strong><\/td><td>Objective (MCQs)<\/td><\/tr><tr><td><strong>Negative Marking<\/strong><\/td><td>0.50 marks per wrong answer<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-takeaways\"><span class=\"ez-toc-section\" id=\"Key_Takeaways\"><\/span><strong>Key Takeaways<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Below are the key takeaways:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSC CGL JSO Paper tests statistical application and reasoning, not memorization.<\/li>\n\n\n\n<li>Understanding concepts + practicing numericals = high score.<\/li>\n\n\n\n<li>Weightage is higher for Probability, Inference, and Correlation.<\/li>\n\n\n\n<li>Keep a formula sheet handy for last-minute revision.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/www.oliveboard.in\/ssc-cgl\/?ref=contmk-db\" target=\"_blank\" rel=\"noreferrer noopener\">Explore all SSC CGL Courses Here<\/a><\/div>\n<\/div>\n\n\n\n<p>Check other SSC JSO &amp; SSC CGL Tier 2 related blogs:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><strong>Blogs<\/strong><\/strong><\/td><td><strong>Blogs<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/www.oliveboard.in\/ssc-jso-mock-test\/?ref=contmk-blogs\">SSC JSO Mock Test<\/a><\/td><td><a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-books\/?ref=contmk-blogs\">SSC JSO Books<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-cutoff\/?ref=contmk-blogs\">SSC JSO Cut Off<\/a><\/td><td><a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-promotion\/?ref=contmk-blogs\">SSC JSO Promotion<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-jso-syllabus\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">SSC JSO Syllabus<\/a><\/td><td><a href=\"https:\/\/www.oliveboard.in\/blog\/most-repeated-computer-awareness-questions-for-ssc-cgl-tier-2\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Most Repeated Computer Awareness Questions for SSC CGL Tier 2<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.oliveboard.in\/blog\/most-repeated-english-questions-for-ssc-cgl-tier-2\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Most Repeated English Questions for SSC CGL Tier 2<\/a><\/td><td><a href=\"https:\/\/www.oliveboard.in\/blog\/most-repeated-reasoning-and-general-intelligence-questions-for-ssc-cgl-tier-2\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Most Repeated Reasoning Questions for SSC CGL Tier 2<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.oliveboard.in\/blog\/most-repeated-quantitative-aptitude-questions-for-ssc-cgl-tier-2\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">Most Repeated Quantitative Aptitude Questions for SSC CGL Tier 2<\/a><\/td><td><a href=\"https:\/\/www.oliveboard.in\/blog\/ssc-cgl-tier-2-weightage-of-english-and-quant\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">SSC CGL Tier 2 Weightage of English and Quant<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1761039265862\"><strong class=\"schema-faq-question\">Q1<strong>. How many questions and marks are there in the SSC JSO Paper?<\/strong><\/strong> <p class=\"schema-faq-answer\">The paper has 100 objective (MCQ) questions carrying 200 marks. The exam duration is 2 hours, and there is a 0.5 mark negative marking for each wrong answer.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1761039286507\"><strong class=\"schema-faq-question\"><strong>Q2. What is the syllabus for SSC CGL JSO 2025?<\/strong><\/strong> <p class=\"schema-faq-answer\">The syllabus includes Collection &amp; Presentation of Data, Measures of Central Tendency &amp; Dispersion, Moments, Skewness &amp; Kurtosis, Correlation &amp; Regression, Probability, Probability Distributions, Sampling Theory, Statistical Inference, Time Series, and Index Numbers.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1761039292775\"><strong class=\"schema-faq-question\"><strong>Q3. How should I prepare for SSC JSO 2025?<\/strong><\/strong> <p class=\"schema-faq-answer\">Focus on conceptual clarity, practicing numerical problems, and maintaining a formula sheet for quick revision. Topics like Probability, Inference, and Correlation carry higher weight, so prioritize them.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1761039348659\"><strong class=\"schema-faq-question\"><strong>Q4. Is the SSC JSO Paper only about memorizing formulas?<\/strong><\/strong> <p class=\"schema-faq-answer\">No. The paper tests application of statistics and reasoning. Understanding concepts and solving practical problems is key to scoring well.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1761039367126\"><strong class=\"schema-faq-question\"><strong>Q5. Are there recommended books for SSC JSO preparation?<\/strong><\/strong> <p class=\"schema-faq-answer\">Yes, refer to standard books for Statistics, Probability, and Data Interpretation. Practicing previous year papers and mock tests is highly recommended.<\/p> <\/div> <\/div>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-cgl-tier-1-pyps\/\">SSC CGL 2025 Tier 1 Question Papers, Shift-Wise PYPs, Download PDFs<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/ssc-cgl-air-70-strategy\/\">SSC CGL AIR 70 Strategy: Mock Analysis &amp; Prep Tips<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/how-did-air-1-use-oliveboard-to-crack-ssc-cgl\/\">How did AIR 1 use Oliveboard to crack SSC CGL 2026? Mock Data Analysis<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/number-puzzles-for-ssc\/\">Number Puzzle Questions for SSC Exams, Attempt Now<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/geometry\/\">Geometry Question Types, Formulas, Concepts, Short Tricks<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/active-passive-voice-for-ssc-exams\/\">Active and Passive Voice Questions for SSC Exams 2026, Attempt Now<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>The SSC CGL Junior Statistical Officer (JSO) paper is an important part of Paper II of Tier 2, designed to<\/p>\n","protected":false},"author":65,"featured_media":233994,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5217,10231,63],"tags":[],"class_list":["post-231024","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ssc-prep","category-ssc-railways","category-ssc-exams","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SSC CGL JSO Statistics Paper, Most Imp Questions &amp; 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