The accompanying data table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Complete the questions below.

x P(x)

0 0.002

1 0.011

2 0.042

3 0.116

4 0.196

5 0.238

6 0.207

7 0.116

8 0.038

9 0.016

10 0.018

Use the range rule of thumb to identify a range of values containing the usual numbers of girls in 10 births.

The maximum usual value is

. (Round to one decimal place asneeded.)

The minimum usual value is

. (Round to one decimal place asneeded.)

Based on theresult, is 1 girl in 10 births an unusually low number ofgirls? Explain.

A.

Yes, 1 girl is an unusually low number ofgirls, because 1 girl is less than the maximum usual value.

B.

Yes, 1 girl is an unusually low number ofgirls, because 1 girl is outside of the range of usual values.

C.

No, 1 girl is not an unusually low number ofgirls, because 1 girl is less than the minimum usual value.

D.

Not enough information is given.