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Birth Length
According to National Vital Statistics, the average length of a newborn baby is 19.5 inches with a standard deviation of 0.9 inch.
The distribution of lengths is approximately Normal.
Use a table or technology for each question.
Include an appropriately labeled and shaded Normal curve for each part. There should be three separate curves.
a. What is the probability that a baby will have a length of 20.4 inches or more?
b. What is the probability that a baby will have a length of 21.4 inches or more?
c. What is the probability that a baby will be between 18 and 21 inches in length?
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