Intro Stats
4th Edition
ISBN: 9780321826275
Author: Richard D. De Veaux
Publisher: PEARSON
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Chapter 13, Problem 5E
Late to the train A student figures that he has a 30% chance of being let out of class late. If he leaves class late, there is a 45% chance that he will miss his train. What is the
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Intro Stats
Ch. 13.1 - Prob. 1JCCh. 13.3 - Prob. 2JCCh. 13.4 - Prob. 3JCCh. 13 - Pet ownership Suppose that 25% of people have a...Ch. 13 - Cooking and shopping Forty-five percent of...Ch. 13 - Sports What is the probability that a person likes...Ch. 13 - Prob. 4ECh. 13 - Late to the train A student figures that he has a...Ch. 13 - Field goals A nervous kicker usually makes 70% of...Ch. 13 - Titanic On the Titanic, the probability of...
Ch. 13 - Prob. 8ECh. 13 - Facebook Facebook reports that 70% of its users...Ch. 13 - Prob. 10ECh. 13 - Prob. 11ECh. 13 - Prob. 12ECh. 13 - Prob. 13ECh. 13 - Prob. 14ECh. 13 - Prob. 15ECh. 13 - Prob. 16ECh. 13 - Prob. 17ECh. 13 - Prob. 18ECh. 13 - Prob. 19ECh. 13 - Prob. 20ECh. 13 - Prob. 21ECh. 13 - 22. Pets In its monthly report, the local animal...Ch. 13 - Health The probabilities that an adult American...Ch. 13 - Immigration The table shows the political...Ch. 13 - Prob. 25ECh. 13 - Prob. 26ECh. 13 - Prob. 27ECh. 13 - Prob. 28ECh. 13 - Prob. 29ECh. 13 - Prob. 30ECh. 13 - Batteries A junk box in your room contains a dozen...Ch. 13 - Prob. 32ECh. 13 - Eligibility A university requires its biology...Ch. 13 - Benefits Fifty-six percent of all American workers...Ch. 13 - Prob. 35ECh. 13 - Prob. 36ECh. 13 - Prob. 37ECh. 13 - Prob. 38ECh. 13 - Unsafe food Early in 2010, Consumer Reports...Ch. 13 - 40. Birth order, finis In Exercises 20 and 26, we...Ch. 13 - Prob. 41ECh. 13 - Prob. 42ECh. 13 - Prob. 43ECh. 13 - Prob. 44ECh. 13 - Prob. 45ECh. 13 - Cars A random survey of autos parked in student...Ch. 13 - Prob. 47ECh. 13 - Prob. 48ECh. 13 - Prob. 49ECh. 13 - Prob. 50ECh. 13 - Prob. 51ECh. 13 - Prob. 52ECh. 13 - Prob. 53ECh. 13 - Prob. 54ECh. 13 - Drunks Police often set up sobriety...Ch. 13 - No-shows An airline offers discounted...Ch. 13 - Prob. 57ECh. 13 - Parts A company manufacturing electronic...Ch. 13 - HIV testing In July 2005, the journal Annals of...Ch. 13 - Polygraphs Lie detectors are controversial...
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- Medicine Out of a group of 9 patients treated with a new drug, 4 suffered a relapse. Find the probability that 3 patients of this group, chosen at random, will remain disease-free.arrow_forwardYou toss two six-sided dice. What is the probability that the total of the two dice is 5?arrow_forwardYou attend a karaoke night and hope to hear your favorite song. The karaoke song book has 300 different songs (your favorite song is among them). Assuming that the singers are equally likely to pick any song and no song repeats, what is the probability that your favorite song is one of the 20 that you hear that night?arrow_forward
- Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible hours----even when it meant slower career advancement----so they could spend more time with their families. The figure shows the results of the survey. What is the probability that three people chosen at random would prefer flexible work hours?arrow_forwardWhat term is used to express the likelihood of an event occurring? Are there restrictions on its values? If so, what are they? If not, explain.arrow_forwardIn Example 8, what is the probability that an employee chosen at random has 30 or more years of service?arrow_forward
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