Question

the first and third quartile of a frequency distribution are 45.14 and 59 24 respectively find the quartile deviation​

Answer 1

• The first and third quartile of a frequency distribution are 45.14 and 59.24 respectively.

• The quartile deviation is half of the difference between the first quartile (Q1) and third quartile (Q3)
• the formula for quartile deviation is given by,

            Quartile deviation  $= \frac{(Q3 -Q1)}{2}$

Given - Q1 = 45.14

            Q3 = 59.24

To find - quartile deviation

Solution - we will use the formula given above and get ,

               Quartile deviation = $\frac{59.24 - 45.14}{2}$

                                              = 7.05

Hence, the quartile deviation of a frequency distribution is 7.05