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July 30, 2015

Homework Help: statistics

Posted by jimmy on Sunday, July 22, 2012 at 5:11pm.

The Better Businesss Bureau reports that they resolve 70% of the consumer complaints they receive.
a) if a random sample of 5 consumer complaints is selected, what is the probability that all 5 were resolved?
b)if a random sample of 5 consumer complaints is selected, what is the probability that at least 1 was not resolved?
c) if a random sample of 5 consumer complaints is selected, what is the probability that none were resolved?
d) if a random sample of 5 consumer complaints is selected, what is the probability that at least 1 was resolved?

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