A test consists of 15 multiple choice questions, with five choices. If you guess the answer to each question, what is the probability of getting all 15 questions correct?

a. 0.20

b. 0.014

c. 0.25

d. 0.00

A Stanley cup match requires that a team win four of seven games to win the Stanley cup trophy. If a team won the first three games, what is the probability that the team will win the Stanley cup, assuming that each team is equally likely to win each game?

a. 0.9375

b. 0.875

c. 0.0625

d. 0.375

According to the American Assoc. of Blood Banks the probability that an individual has type O+blood is 24%.If three unrelated people are selected at random. What is the probability that all 3 have type O+blood?

a. 0.0138

b. 0.561

c. 0.439

d. 0.76

A gumball machine has just been filled with 150 gumballs of which 50 are black, 40 are white, 35 are red and 25 are yellow.Sue and Jim approached the machine first each paying their nickel and purchasing one.They both said they wanted red gum balls.What is the likelihood they both got their wish?

a. 5.3%

b. 2.7%

c. 17.3%

d. 6.6%