According to the National Vital Statistics, full-term baby’s birth weights are approximately normal distributed with a mean of 7.5 lb and a standard deviation of 1.1 lb. Some physicians believe that a birth weight of 5.5 lb or less is dangerous.  If there were 600 full-term babies born at a hospital in 2010, how many of them would you expect to weigh 5.5 lb or less?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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According to the National Vital Statistics, full-term baby’s birth weights are approximately normal 
distributed
with a mean of 7.5 lb and a standard deviation of 1.1 lb. Some physicians believe that a 
birth weight of 5.5 lb or less is dangerous. 

If there were 600 full-term babies born at a hospital in 2010, how many of them would you 
expect to weigh 5.5 lb or less?

 

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