First slide

Introduction to statistics

Question

The $S . D .$ of scores l, 2, 3, 4, 5, is

Moderate

A

$\sqrt{2}$
B

$\sqrt{3}$
C

$\frac{2}{5}$
D

$\frac{3}{5}$

Solution

We know that the variance of first n natural
numbers is $\frac{n^{2} - 1}{12}$
Hence, required S.D. $= \sqrt{\frac{5^{2} - 1}{12}} = \sqrt{2}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App