What is the first big change that American drivers made due to
higher gas prices? According to an Access America survey, 20%
said that it was cutting recreational driving. However, 26%
said that it was consolidating or reducing errands. If these
figures are true for all American drivers, and if 20 such drivers
are randomly sampled and asked what is the first big change they
made due to higher gas prices?
a. What is the probability that exactly 8
said that it was consolidating or reducing errands? enter
probability rounded to 4 decimal places
b. What is the probability that none of
them said that it was cutting recreational driving? enter
probability rounded to 7 decimal places
c. What is the probability that more than
7 said that it was cutting recreational driving?