For six observations the following sums are known: and

MATHEMATICS · Single correct · CBSE · Mathematics · Statistics · Statistics

Problem

For six observations the following sums are known:

\sum x = 48

and

\sum x^{2} = 400

. Find the population variance

\sigma^{2}

. (a)

3.2

(b)

16

(c)

2.67

(d)

1.63