Assume that the number of calories in a McDonald's Egg McMuf n is a normally distributed random variable with a mean of 290 calories and a standard deviation of 14 calories.
(a) What is the probability that a particular serving contains fewer than 300 calories?
(b) More than 250 calories?
(c) Between 275 and 310 calories? Show all work clearly. (Data are from McDonalds.com)