Question

Find the median of 11,15,13,27,19,24 and 20.if 13is replaced by 31,find the new mean

Answer 1

Arrange in ascending order:

11, 13, 15, 19, 20, 24 , 27

total 7 terms.

So median = (7+1)/2 = 4th term

So median = 19.

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replace 13 by 31.

mean = (11 + 31 + 15 + 19 + 20 + 24 + 27)/7 = 147/7 = 21

mean = 21

Answer 2

Find the median of 11,15,13,27,19,24 and 20.if 13is replaced by 31,find the new mean