Q. Let r be the range and $S^{2} = \frac{1}{n - 1} Σ (x_{i} - \overline{x})^{2} I f S^{2} \leq r^{2} k$ then k is equal to

2077 189 Statistics Report Error

A

$\frac{1}{n - 1}$

20%

B

$\frac{n}{n - 1}$

40%

C

$\frac{n + 1}{2 ( n - 1 )}$

20%

D

none of these

20%

Solution:

Correct answer is (b) $\frac{n}{n - 1}$