Question

Arithmetic mean is 12 and number of observations are 20 then sum of all values is _______

Answer 1

ANSWER

mean=sum of observation÷number of observation

12=sum of observation/20

20*12=sum of observation

sum of all observations=240

Answer 2

The sum of all values is 240

Given :

Arithmetic mean is 12 and number of observations are 20

To find :

The sum of all values

Solution :

Step 1 of 2 :

Write down the arithmetic mean and number of observations

Here it is given that ,

Arithmetic mean = 12

Number of observations = 20

Step 2 of 2 :

Find sum of all values

The sum of all values

= The sum of all observations

= Arithmetic mean × Number of observations

= 12 × 20

= 240

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