The mean incubation time for a type of fertilized egg kept at 100.6°F is 21 days. Suppose that the incubation times are approximately normally distributed with a standard deviation a) What is the probability that a randomly selected fertilized egg hatches in less than 17 days? b) What is the probability that a randomly selected fertilized egg hatches between 19 and 21 days? c) What is the probability that a randomly selected fertilized egg takes over 25 days to hatch? Click to view page 1 of the standard normal table. Click to view page 2 of the standard normal table.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The mean incubation time for a type of fertilized egg kept at 100.6°F is 21 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 17 days?
b) What is the probability that a randomly selected fertilized egg hatches between 19 and 21 days?
c) What is the probability that a randomly selected fertilized egg takes over 25 days to hatch?
Click to view page 1 of the standard normal table.
Click to view page 2 of the standard normal table.
Transcribed Image Text:The mean incubation time for a type of fertilized egg kept at 100.6°F is 21 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 17 days? b) What is the probability that a randomly selected fertilized egg hatches between 19 and 21 days? c) What is the probability that a randomly selected fertilized egg takes over 25 days to hatch? Click to view page 1 of the standard normal table. Click to view page 2 of the standard normal table.
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