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QUESTION

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______ .

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