Question

find the arithmetic mean of 14,11,23,7,18,14,5,8.

Answer 1

given observation: 14,11,23,7,18,14,5,8

mean=sum of observations /no of observation

mean=14+11+23+7+18+14+5+8/8

mean=100/8

mean=12.5

hope it is helpful

Answer 2

The arithmetic mean of 14 , 11 , 23 , 7 , 18 , 14 , 5 , 8 is 12.5

Given :

The observations 14 , 11 , 23 , 7 , 18 , 14 , 5 , 8

To find :

The arithmetic mean

Solution :

Step 1 of 2 :

Calculate sum of the observations

Here the given observations are 14 , 11 , 23 , 7 , 18 , 14 , 5 , 8

Number of observations = 8

Sum of the observations

= 14 + 11 + 23 + 7 + 18 + 14 + 5 + 8

= 100

Step 2 of 2 :

Find the arithmetic mean

The required arithmetic mean

$\displaystyle \sf{ = \frac{Sum \: of \: the \: observations}{Number \: of \: observations} }$

$\displaystyle \sf{ = \frac{100}{8} }$

$\displaystyle \sf{ = 12.5}$

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