$\begin {array} {1 1} (A)\;20 & \quad (B)\;50 \\ (C)\;25 & \quad (D)\;30 \end {array}$

Want to ask us a question? Click here

Browse Questions

Ad |

0 votes

0 votes

Ans : (D)

First arrange the given data in ascending order of magnitude i.e.,

$ 21, 23, 27, 29, 31, 39, 41, 49$

Here the number of observations is 8

8 - even number

$ \therefore $ Median = mean of $T_{\large\frac{8}{2}}$ and $T_{\large\frac{8}{2}+1}$

$ = \large\frac{1}{2}$ $ [ T_4+T_5]$

$ = \large\frac{1}{2}$ $ [ 29+31]$

$ = 30$

Ask Question

Take Test

x

JEE MAIN, CBSE, NEET Mobile and Tablet App

The ultimate mobile app to help you crack your examinations

...