Among drivers who drive daily about 40% have gotten a speeding tickets at one point or another. There is a statistics class of 80 students and 10 of them can actually drive every day. Using this information, answer the questions below.
For full marks your answer should be accurate to at least three decimal places.
a) How many of the drivers in the class would you expect to have had a speeding ticket?
b) What is the probability that the number of those who have had tickets is 4?
c) What is the probability that the number of those who have had tickets equals 2 or 6?
d) What is the probability that the number of those who have had tickets is less than or equal to 8?