The mean incubation time for a type of fertilized egg kept at 100.7?°F is 22 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days
?(a) What is the probability that a randomly selected fertilized egg hatches in less than 18 ?days?
?(b) What is the probability that a randomly selected fertilized egg hatches between 20 and 22 ?days?
?(c) What is the probability that a randomly selected fertilized egg takes over 26 days to? hatch?