In a national survey college students were asked, "How often do you
wear a seat belt when riding in a car driven by someone else?" The
response frequencies appear in the table to the right. (a) Construct a
probability model for seat-belt use by a passenger. (b) Would you
consider it unusual to find a college student who never wears a seat belt
when riding in a car driven by someone else?
(a) Complete the table below.
Response
Never
Rarely
Probability
Response
Never
Rarely
Sometimes
Most of the time
Always
Frequency
149
310
584
1005
2375
Sometimes
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
Most of the time
Always
(b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven