Question

The variance of 6 scores 1, 2, 3, 4, 5, 6 is ______ 

Options

• 4

• `35/12`

• `sqrt(35/12)`

• `sqrt2`

Answer 1

The variance of 6 scores 1, 2, 3, 4, 5, 6 is `underline(35/12)`.

Explanation:

the variance of 1^st n natural numbers = `(n^2 - 1)/12`

For n = 6,

this value = `(6^2 - 1)/12 = 35/12`