Question

find mean of first 12 whole numbers

Answer 1

First 12 whole numbers are:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

The sum is 66.

$average = \frac{sum \: of \: numbers}{no. \: of \: observations}$

$average = \frac{66}{12} = \frac{11}{2} = 5.5$


Answer. The mean is 5.5

Hope it helps !!!

Answer 2

The mean of first 12 whole numbers is 5.5

Given : First 12 whole numbers.

To find : The mean of first 12 whole numbers.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the required mean)

First 12 whole numbers :

= 0,1,2,3,4,5,6,7,8,9,10,11

Sum of first 12 whole numbers :

= 0+1+2+3+4+5+6+7+8+9+10+11

= 66

Here,

• Sum of observations = Sum of first 12 whole numbers = 66
• Number of observations = 12 (as there are 12 numbers)

Now, mean of first 12 whole numbers :

= Sum of observations ÷ Number of observations

= 66 ÷ 12

= 5.5

(This will be considered as the final result.)

Hence, the mean of first 12 whole numbers is 5.5