What is the z score that includes 45% of the population? It will be negative between 0 and -0.5). Multiply that number and the standard deviation and subtract that from the mean score.
Shin U.
asked • 06/08/21Please help someone help me solve this
A Math test score is assumed to
be normally distributed with a
mean score of 50 and a standard
deviation of 10. If 45% of the students failed the test,
what was the minimum passing score?
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