Question

Find the mean of first five natural numbers.

Answer 1

First five natural numbers are 1, 2, 3, 4 and 5
Hence,
Mean `bar"X" = (sumx)/"n"`
= `(1 + 2 + 3 + 4 + 5)/(5)`
= `(15)/(5)` = 3
`bar"X"` = 3.