Question

3. Find the mean and median of the data :
35, 48, 92, 76, 64, 52, 51, 63 and 71.
If 51 is replaced by 66, what will be the new
median ?​

Answer 1

Answer:

First we need to arrange given data in ascending order

35,48,51,52,63,64,71,76,92

Mean =

n

∑x

i

=

9

552

=61.33

Median =

2

(n+1)

th term =

2

10

=5 th term i.e., 63

If we replace 51 by 66 new series will become

35,48,52,63,64,66,71,76,92

new median is again 5th term i.e., 64