Question

Find out the variance of first 50 natural number

Answer 1

See the excel sheet for calculations of mean, deviation and (deviation)².


$mean=25.5\\ \\\sum(x-x')^2 = 10412.5$

$variance= \frac{1}{N} \sum(x-x')^2= \frac{1}{50} \times 10412.5=208.25$

6aebc6e39b216622c66bf276a928bb57.xlsx