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JEE MATHEMATICS MCQ: STATISTICS

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Analyzing +4 | -1
Statement-1: The variance of first nn even natural numbers is n2−14\frac{n^2-1}{4}.

Statement-2 : The sum of first nn natural numbers is n(n+1)2\frac{n(n+1)}{2} and the sum of squares of first nn natural numbers is n(n+1)(2n+1)6\frac{n(n+1)(2 n+1)}{6}.
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Correct option: C
Statement- 1 is false, Statement- 2 is true.
Statement-1 is false and Statement-2 is true, therefore option C is the correct answer.

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