C.

4. Two thirds of drivers put their seat belt on when they get into a driving simulator. Use that fact to answer the following questions. (5 points each) a. If 10 people get into the simulator, what is the probability that exactly 8 of the people will put on their seat belts? The probability that 8 people will put their seatbelt is 0.1951 P(X = 8) = X(0.6667)(8)x(0.3333)(2) = 0.1951 b. If 10 people get into the simulator, what is the probability that no more than 8 people will put on their seat belts? The probability that more than 8 people will put on their seatbelts is 0.2992 P(x 2 8) = 0.1951 + 0.0867 + 0.0174 = 02.2992 c. What is the expected number of those 10 people who put on their seat belts