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12-08-2019
Mathematics

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You roll a die, winning nothing if the number of spots is odd, $5 for a 2 or a 4, and $20 for a 6. a) Find the expected value and standard deviation of your prospective winnings. b) You play five times. Find the mean and standard deviation of your total winnings. c) You play 50 times. What is the probability that you win at least $270?

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13-08-2019

TeX rendering has been iffy at best on this site for the past few days, at least in my experience. I've attached a solution below.

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