### Home > CCA2 > Chapter 10 > Lesson 10.1.4 > Problem 10-67

10-67.

According to the *National Health Statistics Report*, the average height of adult women in the U.S. is

What percent of women are under

ft in. tall? First, note that

ft in. must be converted to inches. normalcdf

^ Most girls reach their adult height by their senior year in high school. In North City High School’s class of

senior students, how many girls would you expect to be shorter than ft in.? (Note: Assume half of the senior students are girls.) Multiply

by the percentage found in part (a). How many senior girls do you expect to be taller than

ft at North City High? Follow the same steps you used in parts (a) and (b).