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November 10th, 2011, 02:27 PM   #1
Joined: Nov 2011

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statistics problem on normal distribution?

a video rental chain estimates that annual expenditure on rentals is normally distributed with mean of $100. 10% of members spend more than $130 in a year. what % of members spend more than $140 in a year?

i have an exam tomorrow.... any help would be appreciated! i'm stuck on the first problem
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