Geometric Random Variables

# Geometric Random Variables - Lecture 4.2(cont Geometric...

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1 Lecture 4.2 (cont.) Geometric Random Variables Geometric Probability Distributions Through 2/25/09 NC State’s free-throw percentage was 71.4% (384/538; 86 th in Div. 1). In the next game 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
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

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## This note was uploaded on 03/10/2011 for the course BUS 350 taught by Professor Reiland during the Spring '08 term at N.C. State.

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Geometric Random Variables - Lecture 4.2(cont Geometric...

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