Question

2g. If the sum of all the observations is 1728
and Arithmetic mean of observations is 64 find number
of observation

Answer 1

Answer:

Total number of observations= 27

Step-by-step explanation:

Given, Sum of all the observations = 1728

Arithmetic mean = (Sum of all observations) ÷ Total number of observations, Given as 64.

Let the total number of observations be x

So,

64 = (1728) / x

=> x = 1728 / 64 = 27