3. A survey of consumers in Mudville showed 10% were dissatisfied with their plumbing jobs. Half of these complaints dealt with Mr. Badwrench, who does 40% of the plumbing jobs in Mudville. What is the probability that a randomly selected consumer has an unsatisfactory plumbing job, given that the plumber was Mr. Badwrench. Are bad plumbing jobs and Mr. Badwrench independent?

3. A survey of consumers in Mudville showed 10% were dissatisfied with their plumbing jobs. Half of these complaints dealt with Mr. Badwrench, who does 40% of the plumbing jobs in Mudville. What is the probability that a randomly selected consumer has an unsatisfactory plumbing job, given that the plumber was Mr. Badwrench. Are bad plumbing jobs and Mr. Badwrench independent?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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