Question

112. Find mean, mode & median of
(75,62, 88, 55, 90, 95, 85, 69, 62, 78, 90,95,90,95,80,71,44,57,68,90​

Answer 1

Given :

Some raw data

75 , 62 , 88, 55, 90, 95, 85, 69, 62, 78, 90,95,90,95,80,71,44,57,68,90​

To Find :

Mean , Median , Mode of the given data

Solution :

Given data is

75,62, 88, 55, 90, 95, 85, 69, 62, 78, 90,95,90,95,80,71,44,57,68,90​

First Arrange the given data in the Ascending order

44 ,55 ,57 ,62 ,62 ,68 ,69 ,71 ,75 ,78 ,80 ,85 ,88 ,90 ,90 ,90 ,90 ,95 ,95 ,95

•Mean

Sum of all observation = 1539

Mean = Sum of all observation /20

Mean = 1539/20 = 76.95

•Median

Number of observation is 20

So median will be (n/2th+ n/2+1th)/2

Median = ( 78 + 80 ) /2

Median = 79

•Mode

Mode is the highest occurring value in the given data

=> Mode of the data is 90