Question

The standard deviation of marks obtained by a student in monthly tests is 36 the variance is

Answer 1

Answer : Variance =6

Explanation :

Since we have given that

Standard deviation of marks obtained by a student in monthly tests =36

As we know that

Variance  is the expectation of standard deviation.

$Variance=\sqrt{\text{ Standard deviation}}\\\\Variance=\sqrt{36}\\\\Variance=6$

So, Variance of marks obtained by a student in monthly tests is 6.