STA 119 Study Guide - Random Variable, Stick Figure, Probability Mass Function

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Hw9a: name ______________________________ class number ________________: use the pmf of the random variable x to determine the mean of x. 76 x f (x) xf(x) m = s. 6 xf x ( ) 2. 9: use the pmf of the random variable x to determine the mean of x. x f x. 05: a game is played as follows: you roll a die. Let x denote the number of spaces that you move. Determine the expected value of x. x f(x) xf(x) 3/6 xf x ( ) 10/ 6 m = s: a game is played as follows: a die is rolled. If the number of spots is even, you win that value in dollars. If the number of spots is odd, you lose : draw a spinner that has the same distribution as the game, determine the expected value of the game. Hw9c: name ______________________________ class number ________________: use the pmf to determine the mean of the random variable x.

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