Explanation Given Information: The bin contains 20 defective joysticks and 30 good ones and X is the number of defective joysticks selected. Formula Used: If n is the number of trials and X is the number of successes, then the probability for a particular value of X is given by: P ( X = x ) = C ( n , x ) p x q n − x Where C ( n , r ) = n ! r ! ( n − r ) ! . Calculation: Consider the random variable X, number of defective joysticks. A total number of joysticks selected, n = 50 out of which 20 defective joysticks and 30 good ones. A possible number of outcomes of random variable X, the number of defective joysticks is 0 , 1 , 2 , 3 . Evaluate the probability, P ( X = 0 ) when 0 is selected from defective joysticks and 3 is selected from 30 good ones. For P ( X = 0 ) , P ( 0 ) = C ( 20 , 0 ) C ( 30 , 3 ) C ( 50 , 3 ) For P ( 20 , 0 ) , C ( 20 , 0 ) = 20 ! 0 ! ( 20 − 0 ) ! = 1 For P ( 30 , 3 ) , C ( 30 , 3 ) = 30 ! 3 ! ( 30 − 3 ) ! = 30 × 29 × 28 × 27 ! 3 × 2 × 1 × ( 27 ) ! = 4060 For P ( 50 , 3 ) , C ( 50 , 3 ) = 50 ! 3 ! ( 50 − 3 ) ! = 50 × 49 × 48 × 47 ! 3 × 2 × 1 × ( 47 ) ! = 19600 Substitute the values to evaluate the probability, P ( X = 0 ) P ( X = 0 ) = 1 × 4060 19600 = 0.2071 Evaluate the probability, P ( X = 1 ) when 1 is selected from defective joysticks and 2 is selected from 30 good ones. P ( X = 1 ) = C ( 20 , 1 ) C ( 30 , 2 ) C ( 50 , 3 ) For C ( 20 , 1 ) , C ( 20 , 1 ) = 20 ! 1 ! ( 20 − 1 ) ! = 20 × 19 ! 1 ! ( 19 ) ! = 20 For C ( 30 , 2 ) , C ( 30 , 2 ) = 30 ! 2 ! ( 30 − 2 ) ! = 30 × 29 × 28 ! 2 × 1 × ( 28 ) ! = 435 For C ( 50 , 3 ) , C ( 50 , 3 ) = 50 ! 3 ! ( 50 − 3 ) ! = 50 × 49 × 48 × 47 ! 3 × 2 × 1 × ( 47 ) ! = 19600 Substitute the values to evaluate the probability, P ( X = 1 ) P ( X = 1 ) = 20 × 435 19600 = 0

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ISBN: 8220103612005

Author: Costenoble

Publisher: CENGAGE L

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Chapter 9, Problem 5RE

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To calculate: The probability distribution of random variable X if 3 joysticks are selected randomly from a bin which contains 20 defective joysticks and 30 good ones and X is the number of defective joysticks selected.

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Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - Prob. 2E Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - Prob. 5E Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - Prob. 7E Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - In Exercises 110, classify the random variable X...Ch. 9.1 - In Exercises 110, classify the random variable X...

Ch. 9.1 - Prob. 11E Ch. 9.1 - Prob. 12E Ch. 9.1 - Prob. 13E Ch. 9.1 - Prob. 14E Ch. 9.1 - In Exercises 1118, (a) say what an appropriate...Ch. 9.1 - Prob. 16E Ch. 9.1 - In Exercises 1118, (a) say what an appropriate...Ch. 9.1 - Prob. 18E Ch. 9.1 - Prob. 19E Ch. 9.1 - Prob. 20E Ch. 9.1 - Prob. 21E Ch. 9.1 - Prob. 22E Ch. 9.1 - In Exercises 2128, give the probability...Ch. 9.1 - Prob. 24E Ch. 9.1 - Prob. 25E Ch. 9.1 - Prob. 26E Ch. 9.1 - Prob. 27E Ch. 9.1 - Prob. 28E Ch. 9.1 - 2010 Income Distribution up to $100,000 The...Ch. 9.1 - 2003 Income Distribution up to $100,000 Repeat...Ch. 9.1 - Prob. 31E Ch. 9.1 - Prob. 32E Ch. 9.1 - Prob. 33E Ch. 9.1 - Housing Prices Going into the Real Estate Bubble...Ch. 9.1 - Prob. 35E Ch. 9.1 - Prob. 36E Ch. 9.1 - Prob. 37E Ch. 9.1 - Prob. 38E Ch. 9.1 - Car Purchases To persuade his parents to...Ch. 9.1 - Prob. 40E Ch. 9.1 - Prob. 41E Ch. 9.1 - Prob. 42E Ch. 9.1 - Prob. 43E Ch. 9.1 - Prob. 44E Ch. 9.1 - Prob. 45E Ch. 9.1 - Prob. 46E Ch. 9.1 - Prob. 47E Ch. 9.1 - Prob. 48E Ch. 9.1 - Prob. 49E Ch. 9.1 - Prob. 50E Ch. 9.1 - Prob. 51E Ch. 9.1 - Prob. 52E Ch. 9.1 - Prob. 53E Ch. 9.1 - Prob. 54E Ch. 9.1 - Prob. 55E Ch. 9.1 - Prob. 56E Ch. 9.1 - Prob. 57E Ch. 9.1 - Prob. 58E Ch. 9.1 - Prob. 59E Ch. 9.1 - Prob. 60E Ch. 9.1 - Prob. 61E Ch. 9.1 - Prob. 62E Ch. 9.1 - Prob. 63E Ch. 9.1 - Prob. 64E Ch. 9.2 - In Exercises 110, you are performing five...Ch. 9.2 - Prob. 2E Ch. 9.2 - Prob. 3E Ch. 9.2 - Prob. 4E Ch. 9.2 - Prob. 5E Ch. 9.2 - Prob. 6E Ch. 9.2 - Prob. 7E Ch. 9.2 - Prob. 8E Ch. 9.2 - Prob. 9E Ch. 9.2 - Prob. 10E Ch. 9.2 - Prob. 11E Ch. 9.2 - Prob. 12E Ch. 9.2 - Prob. 13E Ch. 9.2 - Prob. 14E Ch. 9.2 - Prob. 15E Ch. 9.2 - Prob. 16E Ch. 9.2 - Prob. 17E Ch. 9.2 - Prob. 18E Ch. 9.2 - Prob. 19E Ch. 9.2 - Prob. 20E Ch. 9.2 - Prob. 21E Ch. 9.2 - Prob. 22E Ch. 9.2 - Prob. 23E Ch. 9.2 - Alien Retirement The probability that a randomly...Ch. 9.2 - Prob. 25E Ch. 9.2 - Prob. 26E Ch. 9.2 - Prob. 27E Ch. 9.2 - Prob. 28E Ch. 9.2 - Manufacturing Your manufacturing plant produces...Ch. 9.2 - 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Prob. 15E Ch. 9.5 - Prob. 16E Ch. 9.5 - Prob. 17E Ch. 9.5 - Prob. 18E Ch. 9.5 - Prob. 19E Ch. 9.5 - Prob. 20E Ch. 9.5 - Prob. 21E Ch. 9.5 - Prob. 22E Ch. 9.5 - Prob. 23E Ch. 9.5 - Prob. 24E Ch. 9.5 - Prob. 25E Ch. 9.5 - Prob. 26E Ch. 9.5 - SAT Scores SAT test scores are normally...Ch. 9.5 - Prob. 28E Ch. 9.5 - Prob. 29E Ch. 9.5 - Prob. 30E Ch. 9.5 - IQ Scores IQ scores (as measured by the...Ch. 9.5 - Prob. 32E Ch. 9.5 - Prob. 33E Ch. 9.5 - Prob. 34E Ch. 9.5 - Prob. 35E Ch. 9.5 - Prob. 36E Ch. 9.5 - Baseball The mean batting average in major league...Ch. 9.5 - Prob. 38E Ch. 9.5 - Marketing Your pickle company rates its pickles on...Ch. 9.5 - Prob. 40E Ch. 9.5 - Prob. 41E Ch. 9.5 - Prob. 42E Ch. 9.5 - Prob. 43E Ch. 9.5 - Prob. 44E Ch. 9.5 - Prob. 45E Ch. 9.5 - Prob. 46E Ch. 9.5 - Prob. 47E Ch. 9.5 - Prob. 48E Ch. 9.5 - Prob. 49E Ch. 9.5 - Prob. 50E Ch. 9.5 - Prob. 51E Ch. 9.5 - Prob. 52E Ch. 9.5 - Prob. 53E Ch. 9.5 - Prob. 54E Ch. 9.5 - Prob. 55E Ch. 9.5 - Prob. 56E Ch. 9.5 - Prob. 57E Ch. 9.5 - Prob. 58E Ch. 9.5 - Prob. 59E Ch. 9.5 - Prob. 60E Ch. 9.5 - Prob. 61E Ch. 9.5 - Prob. 62E Ch. 9.5 - Prob. 63E Ch. 9.5 - Prob. 64E Ch. 9.5 - Prob. 65E Ch. 9.5 - Prob. 66E Ch. 9.5 - Prob. 67E Ch. 9.5 - Prob. 68E Ch. 9.5 - Prob. 69E Ch. 9.5 - Prob. 70E Ch. 9.5 - Prob. 71E Ch. 9.5 - Prob. 72E Ch. 9.5 - Prob. 73E Ch. 9.5 - Prob. 74E Ch. 9 - Prob. 1RE Ch. 9 - Prob. 2RE Ch. 9 - Prob. 3RE Ch. 9 - Prob. 4RE Ch. 9 - Prob. 5RE Ch. 9 - Prob. 6RE Ch. 9 - Prob. 7RE Ch. 9 - Prob. 8RE Ch. 9 - Prob. 9RE Ch. 9 - Prob. 10RE Ch. 9 - Prob. 11RE Ch. 9 - Prob. 12RE Ch. 9 - Prob. 13RE Ch. 9 - Prob. 14RE Ch. 9 - A die is constructed in such a way that rolling a...Ch. 9 - Prob. 16RE Ch. 9 - Prob. 17RE Ch. 9 - Prob. 18RE Ch. 9 - Prob. 19RE Ch. 9 - Prob. 20RE Ch. 9 - Prob. 21RE Ch. 9 - Prob. 22RE Ch. 9 - Prob. 23RE Ch. 9 - Prob. 24RE Ch. 9 - Prob. 25RE Ch. 9 - Prob. 26RE Ch. 9 - Prob. 27RE Ch. 9 - Prob. 28RE Ch. 9 - Prob. 29RE Ch. 9 - Prob. 30RE Ch. 9 - Prob. 31RE Ch. 9 - Prob. 32RE Ch. 9 - Prob. 33RE Ch. 9 - Prob. 34RE Ch. 9 - 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The probability distribution of random variable X if 3 joysticks are selected randomly from a bin which contains 20 defective joysticks and 30 good ones and X is the number of defective joysticks selected.

Solution Summary: The author calculates the probability distribution of random variable X if 3 joysticks are selected randomly from a bin.

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To calculate: The probability distribution of random variable X if 3 joysticks are selected randomly from a bin which contains 20 defective joysticks and 30 good ones and X is the number of defective joysticks selected.

Chapter 9 Solutions