Math121 - Final Review Sheet

# Math121 - Final Review Sheet - MATH 121 REVIEW QUESTIONS...

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Unformatted text preview: MATH 121 REVIEW QUESTIONS FOR FINAL EXAM 1) There are 2 piles of Uno cards each numbered 0 through 4. Draw one card from each pile. Suppose we want to consider the random variable, T, where T is the total of the numbers on the two cards dawn. (a) Determine the probabillity distribution of T and organize it in a table. (b) Plot the probability distribution for this random variable. (c) What is the expected value of T? 2) A roulette wheel has 18 red compartments, 18 black compartments, and 2 green compartments. Suppose you bet \$10. In this particular game, you win \$5 if the ball lands in a red compartment, and you win \$30 if the ball lands in a green compartment. Otherwise, if the ball does not land in red or green, you lose the \$10 you bet. (a) Write a table for the random variable representing change in net earnings. (b) Plot the probability distribution for this random variable. (c) What is the expected monetary value you can gain or lose from making this bet? Is it in your best interest to keep making repeated bets?...
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## This note was uploaded on 12/07/2010 for the course MATH Math 121 taught by Professor Beaulieu during the Fall '10 term at UMass (Amherst).

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Math121 - Final Review Sheet - MATH 121 REVIEW QUESTIONS...

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