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June 7th, 2012, 01:06 PM   #1
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permutation and combination (1)

5 bottle of spoiled milk mixed with 15 bottle of good milk
1-if 3 bottle were selected at random, whit is the probability that they contain unspoiled milk
2-probability that the three selected at random are spoiled milk
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June 7th, 2012, 01:26 PM   #2
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Re: permutation and combination

Hello, talo0000!

Quote:
5 bottles of sour milk is mixed with 15 bottles of good milk.
1. If 3 bottle were selected at random, what is the probability that they contain good milk?






Quote:
2. What is the probability that the three selected at random are sour milk?





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June 7th, 2012, 01:32 PM   #3
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Re: permutation and combination

Quote:
Originally Posted by talo0000
5 bottle of spoiled milk mixed with 15 bottle of good milk
1-if 3 bottle were selected at random, whit is the probability that they contain unspoiled milk
2-probability that the three selected at random are spoiled milk
thank you
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