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# The mean incubation time for a type of fertilized egg kept at 100.7F is 21 days. Suppose that the incubation times are approximately normally...

The mean incubation time for a type of fertilized egg kept at 100.7°F is 21 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 1 day.

(a) What is the probability that a randomly selected fertilized egg hatches in less than 19 days?

(b) What is the probability that a randomly selected fertilized egg hatches between 20 and 21 days?

(c) What is the probability that a randomly selected fertilized egg takes over 23 days to hatch?

(a) The probability that a randomly selected fertilized egg hatches in less than 19 days is______ .