# Probability???

The probability of a CD case being defective is 1/520. If the factory makes 7,800 cases per week, how many are likely to be defective?

I don't understand this its so confusing :(

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1. Is it 7,800 divided by 520?

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2. yes, but I would rather have you think of

(1/520)(7800)
= 7800/520 ---> see, there is your division by 520
= 15

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posted by Reiny
3. THANKYOUTHANKYOUTHANKYOU
<3<3 Reiny
I was on this question for so long!

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