Answered step by step
Verified Expert Solution
Question
...
1 Approved Answer
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What proportion of
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of
scores is normally distributed. What proportion of tests has scores over 90?
A. .9772
B. .0228
C. .9544
D. .0456
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access with AI-Powered Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started