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Class 11 Mathematics — Chapter 15: Statistics
67 practice questions · 22 Easy · 22 Medium · 23 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Mathematics, Chapter 15 (Statistics). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 67.
Sample questions
Q1Easy
Mean of 2,4,6,8,10:
A.6✓ correct
B.5
C.7
D.4
Why
30/5=6.
Q2Medium
Variance is the:
A.Average of squared deviations from mean✓ correct
B.Range squared
C.Mean × median
D.Square of mean
Why
σ² = Σ(xᵢ−x̄)²/n.
Q3Hard
Mean deviation about mean uses:
A.Absolute deviations |xᵢ−x̄|✓ correct
B.Squared deviations
C.Cubed deviations
D.Differences from median only
Why
MD = Σ|xᵢ−x̄|/n.
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