How likely or unlikely is a male's foot length to be smaller than 9.5 inches? Not too unlikely, since the probability of being smaller than 9.5 is which is not a particularly low probability.
How likely or unlikely is a foot length longer than 15.5 inches? Extremely unlikely, since the probability of being longer than 15.5 is only .
There is probability of 0.5 that a male's foot is shorter than