Scores on a test are normally distributed with a mean of 60.6 and a standard deviation of 10.3. find P81, which separates the bottom 81% from the top 19%
Is it 0.291 or 69.7 or 63.6 or 0.88 ? Please help
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Scores on a test are normally distributed with a mean of 60.6 and a standard deviation of 10.3. find P81, which separates the bottom 81% from the top 19%
Is it 0.291 or 69.7 or 63.6 or 0.88 ? Please help
There are two obviously wrong answers and you should be able to calculate the 81st percentile.
What did you get from your calculations?
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