Question

Find the mean of squares of first 4 natural numbers

Answer 1

Answer:

$mean = \frac{sum \: of \: all \: observation}{number \: of \: all \: observation}$

Squares of First 4 natural numbers :

$1 {}^{2} = 1 \\ 2 {}^{2} = 4 \\ 3 {}^{2} = 9 \\ 4 {}^{2} = 16$

$mean = \frac{1 + 4 + 9 + 16}{4}$

$mean = \frac{30}{4}$

Mean = 7.5

//Hope it will helps you //