JEE Main Pattern Practice — Statistics
A 27-question practice quiz on the full chapter: mean deviations, variance and SD for every data type, shortcut-method computations, linear-transformation effects, the coefficient of variation, combined groups, and missing-observation and corrected-statistics problems.
These questions are modelled on the JEE Main pattern and difficulty; they are practice questions in the exam style, not reproductions of specific past papers.
How to attempt this like the real exam:
- Set a timer for 60 minutes and attempt all 27 questions in one sitting.
- Score yourself by the JEE Main scheme: +4 for each correct answer, -1 for each wrong answer, 0 for skipped questions. Maximum score: 108.
- First pass: solve everything that yields within a minute. Second pass: the ones needing real computation. Guess only when you can eliminate two options.
- Review every explanation afterwards — including for questions you got right.
| Your Score | Where You Stand |
|---|---|
| 90 – 108 | Excellent — JEE-ready on this chapter |
| 65 – 89 | Strong — patch the specific topics you dropped |
| 40 – 64 | Decent base — rework the JEE Corner and Solved Examples |
| Below 40 | Revisit Sections 1-3 before attempting again |
Statistics pairs with Probability (next chapter) to close Class 11 — and returns in Class 12 as probability distributions, where mean and variance reappear as expectation machinery.