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March 26, 2015

March 26, 2015

Posted by **CM** on Wednesday, October 14, 2009 at 10:39am.

What I have so far is:

P(at least one student said they were worse ave. driver)

= 1 - P(no students saying they were worse than ave. driver)

= 1- (0.95????

I am confused here. Please help and show work so I can understand.

- Stats -
**economyst**, Wednesday, October 14, 2009 at 3:25pmThe probability that the 1st driver says equal or better than average is .95. The probability that both say better than average is .95*.95 = .9025

Ergo, the prob that at least one says worse than average is 1-.9025 = .0975

- Stats -
**CM**, Wednesday, October 14, 2009 at 3:44pmThank you.

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