The heights of adult males in a population are normally distributed with mean 175 cm and standard deviation 8 cm.
(a) Find the probability that a randomly chosen male has a height greater than 185 cm.
(b) Find the probability that a randomly chosen male has a height between 160 cm and 185 cm.
(c) In a group of 200 adult males, find the expected number with height less than 160 cm.