The following data are based on information taken from the Statistical Abstract of the United States (112th Edition). Compute the expected value for the family size where in this tablexis the size of the family.

x

2

3

4

5

6

7

P(x)

0.42

0.23

0.21

0.10

0.03

0.01

1.040

3.12

1.096

1.202

11.18