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Question 380004
JEE Mathematics · Medium

Statistics: Variance MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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VarianceMediumQuestion 380004

Question

The variance of a dataset is the:
  1. A
    Mean of squared deviations from the mean
    Correct
  2. B
    Square root of standard deviation
  3. C
    Mean deviation
  4. D
    Range/4

Correct answer

Mean of squared deviations from the mean

Explanation

Variance σ² = (1/n)Σ(xᵢ − x̄)². Standard deviation σ = √(variance).

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