Question

what is the arithmetic mean of 4 6 7 5 3 5 4 5 2 6 2 5 1 9 6 5 8 4 6 7 with explanation​

Answer 1

Answer:

$mean = \frac{sum \: of \: all \: observation}{total \: no \: of \: observation}$

4+6+7+5+3+5+4+5+2+6+2+5+1+9+6+5+8+4+6+7/20

100/20=5

Answer 2

Given,

Numbers $\[ = 4,6,7,5,3,5,4,5,2,6,2,5,1,9,6,5,8,4,6,7\]$

Solution,

The arithmetic mean is the simplest mean, or average. It simply involves taking the sum of a group of numbers and then dividing that sum by the count of the numbers.

Arithmetic mean $\[ = \frac{{\sum n }}{n}\]$

$\[ = \frac{{4 + 6 + 7 + 5 + 3 + 5 + 4 + 5 + 2 + 6 + 2 + 5 + 1 + 9 + 6 + 5 + 8 + 4 + 6 + 7}}{{20}}\]$

$\[ = \frac{{100}}{{20}}\]$

$\[ = 5\]$

Hence the arithmetic mean of numbers is $\[5\]$