Question

The quartiles of a variable are 45,52,65 respectively. Its quartile deviation is​

Answer 1

GIVEN Q1= 45,Q2=53,Q3=65

QUARTILE DEVIATION = Q3 - Q1/2

=65-45/2= 20/2= 10ans.

Answer 2

Answer:

The quartile deviation of the given variable is 10.

Given:

The quartiles of a variable are 45,52,65 respectively.  

To find:

Its quartile deviation.

Solution:

Quartile deviation is half the difference between the third and the first quartile of a frequency distribution.

Here $Q_{1}$ = 45, $Q_{2}$  = 52, $Q_{3}$ =65

$Q_{d} = \frac{(Q_{3}- \mathrm{Q}_{1})}{2}$

 $= \frac{(65 - 45)}{2}$

 $= \frac{20}{2}$

$Q_{d}= 10$ is the quartile deviation of the series.