(a)
To find the percentage of population scores between 400 and 500 marks in aptitude test.
Answer to Problem 30E
The percentage of population scores between 400 and 500 marks in aptitude test is 34.45 %
Explanation of Solution
Given information: Mean
Formula Used: The probability density function for a normal distribution with mean
and standard deviation
Calculation :
Here,
When
When
Between
Hence, the percentage of population scores between 400 and 500 marks in aptitude test is 34.45 %
Chapter 8 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
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