Suppose you play a game that you can only either win or lose. The probability that you win any game is 65%, and the probability that you lose is 35%. Each game you play is independent. Let X is the number of wins If you play the game 20 times.  Find the variance of X

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Suppose you play a game that you can only either win or lose. The probability that you win any game is 65%, and the probability that you lose is 35%. Each game you play is independent. Let X is the number of wins If you play the game 20 times. 

Find the variance of X

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