Mathematics, 23.07.2019 05:30 Gattuso
Scores on an english test are normally distributed with a mean of 31.5 and a standard deviation of 7.3. find the score that separates the top 59% from the bottom 41%. round your answer to the nearest tenth.
Answers: 3
is a random variable representing test scores, then the 41st percentile is the score 
such that 
. Transform 
that follows the standard normal distribution via 
:
-score for the 41st percentile is about -0.2275, so
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Scores on an english test are normally distributed with a mean of 31.5 and a standard deviation of 7...
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