3.

If the time it takes me to get to work is uniformly distributed between 10 and 30 minutes, how often will it take me more than 25 minutes to get to work? a. One third of the time. b. 25% of the time. c. 75% of the time. d. Two thirds of the time. e. None of the above

4.

If an (unfair) coin comes up heads 90% of the time, what is the probability of flipping five heads in a row? a. .50. b. .59. c. .03. d. .90. e. None of the above.