The Statistics paper (Paper-III) of SSC CGL Tier-2 is conducted only for candidates applying for the post of Junior Statistical Officer (JSO). This paper is held in online mode, contains 100 questions for a total of 200 marks, and the duration is 2 hours. In this blog, you can check the important topics for the Statistics paper to help boost your preparation for SSC CGL Tier-2 2025.
SSC CGL Exam Overview
The SSC Combined Graduate Level (CGL) exam is one of the most popular government exams in India. It is conducted every year to recruit candidates for various Group B and C posts in different ministries and departments under the Government of India.
| Particulars | Details |
| Name | Staff Selection Commission Combined Graduate Level (SSC CGL) |
| Conducted by | Staff Selection Commission (SSC) |
| Exam Level | National |
| Frequency | Yearly |
| Exam Mode | Online (Tier‑1 & Tier‑2 CBT); Offline (Tier‑3 descriptive) |
| Exam Duration | Tier‑1: 60 minutesTier‑2: 120 minutes per paper (Paper‑I, II, III, IV where applicable)Tier‑3: 60 minutes |
| Purpose of Exam | To select candidates for Group B and C posts across various Government of India departments |
| Language | English and Hindi |
| Exam Helpdesk No. | 011‑69999845 |
| Official Website | https://ssc.gov.in |
SSC CGL Tier 2 Exam Pattern
Before moving on to the preparation strategy, it is very important for candidates to understand the latest exam pattern. The SSC CGL Tier 2 exam consists of the following structure:
Paper 1 – This paper is compulsory for all candidates and is conducted in two sessions on the same day.
Session I includes three sections:
Section I: Mathematical Abilities and Reasoning & General Intelligence
Section II: English Language & Comprehension and General Awareness
Section III: Computer Knowledge Module (qualifying)
Session II includes Module II of Section III: Data Entry Speed Test (DEST), which is qualifying in nature.
Paper 2 – This paper is conducted only for candidates who have applied for the post of Junior Statistical Officer (JSO). It tests concepts related to Statistics.
Paper 3 – This paper is conducted only for candidates who have applied for the post of Assistant Audit Officer (AAO) or Assistant Accounts Officer. It covers General Studies (Finance and Economics).
Paper 1 is compulsory for all SSC CGL candidates. Paper 2 is only for those who have applied for the JSO post, and Paper 3 is only for those who have applied for the AAO post.
| Paper/Session | Section / Subject | Questions / Marks |
| Paper 1 (for all posts) (2 hrs 15 mins total) | Section I (1 hour) Module I – Mathematical Abilities Module II – Reasoning & General Intelligence | 30 + 30 = 60 questions 180 marks |
| Section II (1 hour) Module I – English Language Module II – General Awareness | 45 + 25 = 70 questions 210 marks | |
| Section III (15 mins) Module I – Computer Knowledge | 20 questions = 60 marks | |
| Session 2 (15 mins) Module II – DEST (Typing Test) | 2000 key depressions in 15 minutes | |
| Paper 2 (Only for JSO) (2 hrs) | Statistics | 100 questions = 200 marks |
Important Statistics topics for SSC CGL Tier 2 Exam
Candidates applying for the Junior Statistical Officer (JSO) post must prepare thoroughly for the Statistics paper in Tier-2. Below is a list of important topics covered in the syllabus, which are essential for scoring well.
| S. No. | Important Statistics Topics | Syllabus |
| 1 | Collection Classification and Presentation of Statistical Data | A. Primary and Secondary data, Methods of data collection B. Tabulation of data C. Graphs and charts D. Frequency distributions E. Diagrammatic presentation of frequency distributions |
| 2 | Measures of Central Tendency | A. Common measures of central tendency – Mean, Mode and Median B. Partition values- quartiles, deciles, percentiles |
| 3 | Measures of Dispersion | A. Common measures of dispersion – range, quartile deviations, mean deviation and standard deviation B. Measures of relative dispersion |
| 4 | Moments, Skewness and Kurtosis | A. Different types of moments and their relationship B. The meaning of skewness and kurtosis C. Different measures of skewness and kurtosis |
| 5 | Correlation and Regression | A. Scatter diagram B. Simple correlation coefficient C. Simple regression lines D. Spearman‘s rank correlation E. Measures of association of attributes F. Multiple regression G. Multiple and partial correlations (For three variables only) |
| 6 | Probability Theory | A. Meaning of probability B. Different definitions of probability C. Conditional probability D. Compound probability E. Independent events F. Bayes‘ theorem |
| 7 | Random Variable and Probability Distributions | A. Random variable B. Probability functions C. Expectation and Variance of a random variable D. Higher moments of a random variable E. Binomial, Poisson, Normal and Exponential distributions Joint distribution of two random variables (discrete) |
| 8 | Sampling Theory | A. Concept of population and sample B. Parameter and statistic, Sampling and non-sampling errors Probability and non-probability sampling techniques (simple random sampling, stratified sampling, multistage sampling, multiphase sampling, cluster sampling, systematic sampling, purposive sampling, convenience sampling and quota sampling) C. Sampling distribution (statement only) D. Sample size decisions |
| 9 | Statistical Inference | A. Point estimation and interval estimation, Properties of a good estimator B. Methods of estimation (Moments method, Maximum likelihood method, Least squares method C. Testing of hypothesis, Basic concept of testing, Small sample and large sample tests, Tests based on Z, t, Chi-square and F statistic D. Confidence intervals |
| 10 | Analysis of Variance | Analysis of one-way classified data and two-way classified data |
| 11 | Time Series Analysis | A. Components of time series B. Determinations of trend component by different methods C. Measurement of seasonal variation by different methods |
| 12 | Index Numbers | A. Meaning of Index Numbers, B. Problems in the construction of index numbers, Types of index number C. Different formulae, Base shifting and splicing of index numbers D. Cost of living Index Numbers, Uses of Index Numbers |
Attempt Test Series for All Govt Exams
SSC CGL JSO Statistics Paper (Tier-2) -FAQs
Ans: It’s a 2-hour online test with 100 questions worth 200 marks, covering core Statistics topics.
Ans: Probability Theory, Statistical Inference, and Correlation & Regression are heavily tested.
Ans: Binomial, Poisson, Normal, and Exponential distributions, including expectation and variance.
Ans: Understand formulas for raw & central moments, plus standard measures of skewness and kurtosis.
Ans: Practice range, mean deviation, standard deviation, and relative dispersion problems.
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