Important Statistics Topics for SSC CGL Tier 2, Check Details Here

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Key Takeaways

The Statistics paper (Paper-III) is crucial for candidates applying for Junior Statistical Officer (JSO) roles in SSC CGL Tier 2.
It consists of 100 questions worth 200 marks, with a duration of 2 hours.
Key topics include Collection of Data, Measures of Central Tendency, Probability Theory, and Statistical Inference among others.
Candidates must know distributions such as Binomial, Poisson, and Normal for effective preparation.
Revision should focus on Measures of Dispersion and concepts like Moments, Skewness, and Kurtosis.

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.

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.

Unit	Topic
1. Collection, Classification & Presentation of Statistical Data	Meaning, types of data, primary & secondary data, frequency distribution, tabulation, diagrammatic representation.
2. Measures of Central Tendency	Mean, Median, Mode, Geometric & Harmonic Mean, Weighted Mean.
3. Measures of Dispersion	Range, Quartile Deviation, Mean Deviation, Standard Deviation, Coefficient of Variation.
4. Moments, Skewness & Kurtosis	Types of moments, coefficient of skewness, coefficient of kurtosis, shape of distribution.
5. Correlation & Regression	Scatter diagrams, Karl Pearson’s coefficient, Spearman’s rank correlation, regression lines, multiple correlation.
6. Probability Theory	Basic definitions, addition & multiplication theorems, conditional probability, Bayes’ theorem.
7. Random Variables & Probability Distributions	Random variables, binomial, Poisson, normal, exponential, and joint distributions.
8. Sampling Theory	Population and sample, sampling techniques, errors, sampling distributions, central limit theorem.
9. Statistical Inference	Estimation, testing of hypotheses, standard errors, t-test, z-test, chi-square test, F-test.
10. Analysis of Variance	One-way classification, Two-way classification
11. Time Series Analysis	Trend determination, Seasonal variation
12. Index Numbers	Construction, Types, Formulae, Uses (e.g., cost of living index)

SSC CGL Tier 2 Paper 2 Study Plan

SSC CGL Exam Overview

The SSC CGL Exam 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

Attempt Free SSC CGL Tier 2 Mock Tests 2025

SSC CGL Tier 2 Exam Pattern

The SSC CGL Exam Pattern has Tier 2 stage and the table below shows the details.

Session	Subject	Questions & Marks	Time
Paper 1 Session I	Section I Module I – Mathematical Abilities Module II – Reasoning and General Intelligence	30 30 60 x 30 = 180	1. 1 hour (with sectional timer of 30 minutes for each subject) 2. 1 hours and 20 minutes (with sectional timer of 30+10=40 minutes for each subject) for the candidates eligible for scribe
	Section II Module I – English Language Comprehension Module II – General Awareness	45 25 70 x 3 = 210	1. 1 hour (with sectional timer of 40 minutes for Subject A i.e. English Language & Comprehension and 20 minutes for Subject B i.e. General Awareness) 2. 1 hours and 20 minutes(with sectional timer of 40+15=55 minutes for Subject A i.e. English Language & Comprehension and 20+5=25 minutes for Subject B i.e. General Awareness) for the candidates eligible for scribe
	Section III Module – I – Computer Knowledge module	20 x 3 = 60	1. 15 Minutes (For Section-III & IV each) 2. 20 minutes for the candidates eligible for scribe
Session II (15 minutes)	Module – II: Data Entry Speed Test	One data entry task
Paper 2	FOR JSO: Paper 2 – Statistics	100 x 2 = 200	1. 2 hours 2. 2 hours and 40 minutes for the candidates eligible for scribe
Paper 3	FOR AAO: Paper 3 – General Studies (Finance and Economics)	100 x 2 = 200	1. 2 hours 2. 2 hours and 40 minutes for the candidates eligible for scribe

SSC CGL Tier 2 Paper 1 is conducted in two sessions on the same day.
Paper 1 is compulsory for all candidates.
Paper 2 is only for candidates applying for the JSO post.
Sectional timing has been introduced in the examination.
All questions are objective type (MCQs) except DEST.
The exam is conducted in both Hindi and English except the English Language section.
Negative marking is 1 mark in Paper 1 and 0.50 mark in Paper 2.
Computer Knowledge and DEST modules are qualifying in nature.
DEST requires 2,000 key depressions in 15 minutes.

Download SSC CGL Tier 2 Previous Year Papers PDF for free

SSC CGL JSO Statistics Paper (Tier-2) -FAQs

Q1. What is the exam pattern for the SSC CGL JSO Statistics paper?

Ans: It is a 2-hour online test with 100 questions worth 200 marks, covering core Statistics topics.

Q2. Which Statistics topics carry the highest weight in Tier-2 JSO?

Ans: Probability Theory, Statistical Inference, and Correlation & Regression are heavily tested.

Q3. Which distributions should I master for the JSO paper?

Ans: Binomial, Poisson, Normal, and Exponential distributions, including expectation and variance.

Q4. How can I tackle moments, skewness, and kurtosis questions?

Ans: Understand formulas for raw & central moments, plus standard measures of skewness and kurtosis.

Q5. What’s the best way to revise Measures of Dispersion?

Ans: Practice range, mean deviation, standard deviation, and relative dispersion problems.

Aadib Nagori

Hello, I’m a content writer working at Oliveboard. I focus on creating blogs, articles, and educational content that’s simple, clear, and saves time for readers. I believe in writing that adds real value without overcomplicating things. I also have strong knowledge of banking and government exams, which helps me create content that is both accurate and easy to understand. With experience and consistency, I aim to make preparation smoother for every learner.