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Finding the percentile 81, this separates the bottom 81% from the top 19%

Scores on a test are normally distributed with a mean of 60.9 and a standard deviation of 12. Find out P81, which separates the bottom 81% from the top 19%.

a. 0.88
b. 0.291
c. 64.4
d. 71.5

Statistics and Probability, Statistics

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  • Reference No.:- M920742

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