Solution Found!
Drivers’ licenses 2011 The table on the next page shows
Chapter 3, Problem 41E(choose chapter or problem)
Drivers’ licenses 2011 The table on the next page shows the number of licensed U.S. drivers (in millions) by age and by sex (www.dot.gov).
a) What percent of total drivers are under 20?
b) What percent of total drivers are male?
c) Write a few sentences comparing the number of male and female licensed drivers in each age group.
d) Do a driver’s age and sex appear to be independent? Explain.
Questions & Answers
QUESTION:
Drivers’ licenses 2011 The table on the next page shows the number of licensed U.S. drivers (in millions) by age and by sex (www.dot.gov).
a) What percent of total drivers are under 20?
b) What percent of total drivers are male?
c) Write a few sentences comparing the number of male and female licensed drivers in each age group.
d) Do a driver’s age and sex appear to be independent? Explain.
ANSWER:
Step 1 of 4
(a)
From the table total number of drivers is
The number of drivers under 20 is given as =
The percent is then the count divided by the table total:
