Question

the mean of the data 4 , 10, 5 ,9 , 12, is​

Answer 1

Answer:

mean : (4+10+5+9+12)/2

= 40/2

= 20

mean of the data is 20.

Answer 2

The mean of the data 4 , 10 , 5 , 9 , 12 is 8

Given :

The data 4 , 10 , 5 , 9 , 12

To find :

The mean of the data

Solution :

Step 1 of 2 :

Find sum of data

Here the given data is 4 , 10 , 5 , 9 , 12

The sum of the data

= 4 + 10 + 5 + 9 + 12

= 40

Step 2 of 2 :

Find the mean

Number of observations = 5

Hence the required mean

$\displaystyle \sf{ = \frac{40}{5} }$

= 8