Genetics. In Exercises 15–20, refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls...

Genetics. In Exercises 15–20, refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children.

Range Rule of Thumb for Significant Events Use the range rule of thumb to determine whether 6 girls in 8 births is a significantly high number of girls.