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4-2_geom_rv

# 4-2_geom_rv - Lecture 4.2(cont Geometric Random Variables...

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1 Lecture 4.2 (cont.) Geometric Random Variables Geometric Probability Distributions Through 2/24/2011 NC State’s free-throw percentage was 69.6 (146 th of 345 in Div. 1). In the 2/26/2011 game with GaTech what was the probability that the first missed free- throw by the ‘Pack occurs on the 5 th attempt?

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2 Binomial Experiments n identical trials n specified in advance 2 outcomes on each trial usually referred to as “success” and “failure” p “success” probability; q=1-p “failure” probability; remain constant from trial to trial trials are independent The binomial rv counts the number of successes in the n trials
3 The Geometric Model A geometric random variable counts the number of trials until the first success is observed. A geometric random variable is completely specified by one parameter, p , the probability of success, and is denoted Geom( p ). Unlike a binomial random variable, the number of trials is not fixed

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4 The Geometric Model (cont.)
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4-2_geom_rv - Lecture 4.2(cont Geometric Random Variables...

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