Three randomly selected children are surveyed. The ages of the children are

2,

6,

and

7.

Assume that samples of size

n=2

are randomly selected with replacement from the population of

2,

6,

and

7.

Listed below are the nine different samples. Complete parts (a) through (d).

2,2

2,6

2,7

6,2

6,6

6,7

7,2

7,6

7,7

Question content area bottom

Part 1

a. Find the value of the population variance

2.

s2

Probability

0

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12.5

40.5

6.3

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