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Question

Mathematics Question on Variance and Standard Deviation

The variance of first n odd natural numbers is n213\frac{n^2 - 1}{3}. The sum of first n odd natural number is n2n^2 and the sum of square of first n odd natural numbers is n(4n2+1)3\frac{ n (4n^2 + 1)}{3} .

A

Statement 1 is true, Statement 2 is false

B

Statement 1 is true, Statement 2 is true; Statement 2 is not a correct explanation for Statement 1

C

Statement 1 is false, Statement 2 is true

D

Statement 1 is true, Statement 2 is true, Statement 2 is a correct explanation for Statement 1

Answer

Statement 1 is true, Statement 2 is false

Explanation

Solution

The correct option is A , Statement 2: Sum of first n odd natural numbers is not equal to n2n^2. So, statement - 2 is false.