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Asked Jun 28, 2012, 11:01 AM — 1 Answer
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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Unknown008 Posts: 8,147, Reputation: 3745
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Jun 28, 2012, 11:31 AM
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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