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Get Full Access to Contemporary Mathematics - 6 Edition - Chapter 5 - Problem 28
Get Full Access to Contemporary Mathematics - 6 Edition - Chapter 5 - Problem 28

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# Solved: Set up and solve equations for each of the following business situations. You

ISBN: 9780538481267 378

## Solution for problem 28 Chapter 5

Contemporary Mathematics | 6th Edition

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Problem 28

Set up and solve equations for each of the following business situations. You are planning to advertise your boat for sale on the Internet. The Boat Mart charges $1.30 for a photo plus$0.12 per word. Boat Bargains charges $1.80 for a photo plus$0.10 per word. For what number of words will the charges be the same?

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Statistics 350 Fall 2008 Exam 1 Explanations 1. Observe that the distribution is roughly bell-shaped. a. The bulk of the data lies in the 100-120 range, so the median should too and only 110 is reasonable. Another way to see this is to realize that in a symmetric distribution, the mean and median should be the same. b. Since the histogram is bell-shaped, we can apply the empirical rule. Roughly 95% of the measurements lie between 80 and 140. By the empirical rule, these numbers should each be 2 standard deviations from the mean making them 4 standard deviations apart. So, the standard deviation should be (140-80)/4 = 15. c. The sketch is to the right. Since the histogram is bell shaped the quantiles should be approximately equal to the normal quantiles. 2. a. Owning a computer is a categorical variable as the response (‘yes’ or ‘no’) is not a measurement. Time spent using a computer is a quantitative continuous variable since it can be measured and any measurement between 0 and the number minutes in a week makes sense. Which social networking sites a respondent uses is a categorical variable. b. i. The shortest list had about 24 friends on the social networking account, while 75% of the list had at least 177 friends. The value 24 may be an outlier, but is still the shortest listed. In a boxplot, 75% of the data is above (at least) the lower quartile (bottom of the box), here 177

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##### ISBN: 9780538481267

This full solution covers the following key subjects: . This expansive textbook survival guide covers 25 chapters, and 765 solutions. Contemporary Mathematics was written by and is associated to the ISBN: 9780538481267. The answer to “Set up and solve equations for each of the following business situations. You are planning to advertise your boat for sale on the Internet. The Boat Mart charges $1.30 for a photo plus$0.12 per word. Boat Bargains charges $1.80 for a photo plus$0.10 per word. For what number of words will the charges be the same?” is broken down into a number of easy to follow steps, and 58 words. The full step-by-step solution to problem: 28 from chapter: 5 was answered by , our top Statistics solution expert on 03/13/18, 06:38PM. This textbook survival guide was created for the textbook: Contemporary Mathematics, edition: 6. Since the solution to 28 from 5 chapter was answered, more than 241 students have viewed the full step-by-step answer.

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