Find the mean first = sum of scores/number of scores
Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.
I'll let you do the calculations.
Find the variance of 3,24,30,47,43,7,47,13,44,39
2 answers
find ur mean
let say ur mean is n
(n-2)²+(n-24)²till u reach d last no/total
let say ur mean is n
(n-2)²+(n-24)²till u reach d last no/total
2 answers