Stat Exam2-Solns

# Stat Exam2-Solns - STAT 2004 Exam 2 Fall 2007 Kermit the...

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STAT 2004 Exam 2 Fall 2007 Kermit the Frog needs some more talent on The Muppet Show . He hires five new characters, from a pool of 2 pigs, 4 chickens, and 4 bears. 1. What is the probability that Kermit hires 2 chickens and 1 pig? a . .2857 b . 2.1429 c . .1000 d . .04762 2. What is the probability that Kermit hires at most one bear? a . . 2619 b . . 2381 c . .02381 d . . 4762 3. How many ways can Kermit hire 4 bears and 1 pig? a. 2 b . 4 c . .00793 d . . 0159

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STAT 2004 Exam 2 Fall 2007 4. True or False ? If two events, A and B, are independent, with Pr[A] = .5 and Pr[B] = .1, then A and B are mutually exclusive. a . True b . False c . Not enough information to tell. 5. 95% of fish caught in the New River are too short to keep. If 6 fish are caught, what is the probability that 4 of those fish are too short to keep? a . . 9695 b . . 0000846 c . .2341 d . . 0305
STAT 2004 Exam 2 Fall 2007 6. Refer back to question 5 . Which of the following is true? a

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Stat Exam2-Solns - STAT 2004 Exam 2 Fall 2007 Kermit the...

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