2. The mean incubation time of fertilized chicken eggs kept at 100.5 F in a still-air incubator is 21 days. Suppose that th incubation times are approximately normally distributed with a standard deviation of 1 day. (a) Draw a normal curve that describes egg incubation times of fertilized chicken eggs. add world (b) Find and interpret the probability that a randomly selected fertilized egg takes over 22 days to hatch. (c) Find and interpret the probability that a randomly selected fertilized egg hatches between 19 and 21 days N