StatsTest3 - Name: _ Statistics & Probability - Test #3...

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Name: ________________________ Show All Work!!! 1. (5 pts.) An urn contains six balls numbered 1-6, otherwise identical. The random experiment consists of selecting five balls without replacement. Write out the sample space for this experiment. (You may use 1 to represent the ball with the 1 on it, 2 to represent the ball with the 2 on it, etc.) 2. (5 pts.) If the probability that it rains tomorrow is 0.8, what is the probability it won’t rain tomorrow? 3. (5 pts.) A person shoots two arrows, in succession, at a target. The probability that she hits the bull’s-eye on the first shot is 0.8. The chance she hits the bull’s-eye on the second shot is 0.7. The chance she hits the bull’s-eye on both the first shot and the second shot is 0.6, what is the probability that she hits the bull’s-eye either on the first or the second time (or both)? 4.
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This note was uploaded on 04/12/2011 for the course STA 215 taught by Professor Tba during the Spring '08 term at Grand Valley State University.

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StatsTest3 - Name: _ Statistics & Probability - Test #3...

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