The American Community Survey reported its findings about workers’ principal means of transportation to work during 2007.
a. The column total is not included because it would be a meaningless value. Examine the table and explain why. One person is to be selected and asked additional questions as part of this survey. If that person is selected at random, find the probability for each of the following events.
b. Person selected is a member of a carpool.
c. Person selected is a member of a 2-person carpool, given that he or she carpools.
d. Person selected does not arrive by car.
e. Person selected uses public transportation, knowing that he or she doesn’t use an automobile.

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