Question

Use the data below to find the

X {15 18 6 17 10 8 18 10 5 19 23}

MEan =

Mode=

Median =

Answer 1

First we arrange given data in ascending order

X : 5 , 6, 8, 10, 10 , 15 ,17 , 18, 18 , 19 ,23

1) Mean = sum / number of observations

= 149/11

Mean = 13.55

2) Mode is the maximum frequency of observation

Here 10 and 18 have same highest frequency

So mode = 10 and 18

3) Median is observation that divides data into two equal parts

Median = (n + 1)/2 th observation

Median = 6 th observation

Median = 15