(a)
To find the proportion of height less than 63.4 inches tall.
Answer to Problem 31E
The proportion of height less than 63.4 inches is 50 %
Explanation of Solution
Given information: Mean
Formula Used: The probability density function for a normal distribution with mean
and standard deviation
Calculation :
Here,
When
At
Hence, the proportion of height less than 63.4 inches is 50 %
Chapter 8 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
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