3. The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has less than two cars. Cars|Households 125 1 428 256 3 108 4 83 A) 0.809 B) 0.125 C) 0.428 D) 0.553 4 The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation. x P(x) 0| 0.07 1 0.68 2 0.21 3 0.03 4 0.01 A) mean: 1.23; standard deviation: 0.44 C) mean: 1.30; standard deviation: 0.44 B) mean: 1.30; standard deviation: 0.32 D) mean: 1.23; standard deviation: 0.66

3. The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has less than two cars. Cars|Households 125 1 428 256 3 108 4 83 A) 0.809 B) 0.125 C) 0.428 D) 0.553 4 The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation. x P(x) 0| 0.07 1 0.68 2 0.21 3 0.03 4 0.01 A) mean: 1.23; standard deviation: 0.44 C) mean: 1.30; standard deviation: 0.44 B) mean: 1.30; standard deviation: 0.32 D) mean: 1.23; standard deviation: 0.66

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 32E

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