12th Edition

ISBN: 9780135240687

Author: Lial

Publisher: PEARSON

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The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

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The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

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Textbook Question

Chapter 10.2, Problem 37E

For Exercises 36-38, calculate the weighted average. (See Example 7.) For Exercises 39 and 40, use the formula for the weighted average to solve for the final examination score.

Final Average Nan enrolled in a class where the homework counts as 15% of the final grade, quizzes count 15%, three midterms exams count as 12% each, and the final exam counts 34%. Nan earned 73% on her homework; 78% on her quizzes; 91%, 93%, and 83% on her three midterm exams; and 88% on the final exam. What is Nan's final average?

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Chapter 10.2, Problem 36E

Chapter 10.2, Problem 38E

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Chapter 10 Solutions

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Ch. 10.1 - Checkpoint 1 A restaurant trade group commissioned...Ch. 10.1 - Checkpoint 2 Make a histogram and a frequency...Ch. 10.1 - Checkpoint 3 Make a stem-and-leaf plot for the...Ch. 10.1 - Checkpoint 4 List the original data for the...Ch. 10.1 - Checkpoint 5 Characterize the shape of the...Ch. 10.1 - SP 500 Stocks The data for Exercises 1 -4 consist...Ch. 10.1 - SP 500 Stocks The data for Exercises 1 -4 consist...Ch. 10.1 - SP 500 Stocks The data for Exercises 1 -4 consist...Ch. 10.1 - SP 500 Stocks The data for Exercises 1 -4 consist...Ch. 10.1 - The data for Exercises 5-10 consist of random...

Ch. 10.1 - The data for Exercises 5-10 consist of random...Ch. 10.1 - The data for Exercises 5-10 consist of random...Ch. 10.1 - The data for Exercises 5-10 consist of random...Ch. 10.1 - The data for Exercises 5-10 consist of random...Ch. 10.1 - The data for Exercises 5-10 consist of random...Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - Prob. 14E Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - Prob. 17E Ch. 10.1 - Prob. 18E Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - For Exercises 11-20, construct a stem-and-leaf...Ch. 10.1 - Describe the shape of each of the given...Ch. 10.1 - Describe the shape of each of the given...Ch. 10.1 - Describe the shape of each of the given...Ch. 10.1 - Describe the shape of each of the given...Ch. 10.1 - Student Loan Defaults The following histogram...Ch. 10.1 - Stocks The following histogram shows the stock...Ch. 10.1 - Cat Ownership The stem-and-leaf plot below...Ch. 10.1 - Personal Bankruptcies The stem-and-leaf plot below...Ch. 10.1 - 29. Test Scores The grade distribution for scores...Ch. 10.1 - 30. Test Scores The grade distribution for scores...Ch. 10.2 - Checkpoint 1 Find the mean dollar amount of the...Ch. 10.2 - Checkpoint 2 Find for the following frequency...Ch. 10.2 - Checkpoint 3 Find the mean of the following...Ch. 10.2 - Checkpoint 4 Find the mean for the college tuition...Ch. 10.2 - Checkpoint 5 Find the median for the given heights...Ch. 10.2 - Checkpoint 6 Find the mode for each of the given...Ch. 10.2 - Checkpoint 7 Following is a list of the number of...Ch. 10.2 - Prob. 8CP Ch. 10.2 - Prob. 1E Ch. 10.2 - Prob. 2E Ch. 10.2 - Prob. 3E Ch. 10.2 - Prob. 4E Ch. 10.2 - Prob. 5E Ch. 10.2 - Prob. 6E Ch. 10.2 - Prob. 7E Ch. 10.2 - Prob. 8E Ch. 10.2 - Prob. 9E Ch. 10.2 - Prob. 10E Ch. 10.2 - Prob. 11E Ch. 10.2 - Prob. 12E Ch. 10.2 - Prob. 13E Ch. 10.2 - Prob. 14E Ch. 10.2 - Find the mode or modes for each of the given lists...Ch. 10.2 - Find the mode or modes for each of the given lists...Ch. 10.2 - Find the mode or modes for each of the given lists...Ch. 10.2 - Find the mode or modes for each of the given lists...Ch. 10.2 - Find the mode or modes for each of the given lists...Ch. 10.2 - 20. When is the median the most appropriate...Ch. 10.2 - 21. When would the mode be an appropriate measure...Ch. 10.2 - Pet Ownership For Exercises 22 and 23, the...Ch. 10.2 - Pet Ownership For Exercises 22 and 23, the...Ch. 10.2 - 24. To predict the outcome of the next...Ch. 10.2 - Work each problem. (See Example 6.) MLB Payrolls...Ch. 10.2 - Work each problem. (See Example 6.) NFL Team...Ch. 10.2 - Work each problem. (See Example 6.) 27. Business...Ch. 10.2 - Work each problem. (See Example 6.) Sirius XM...Ch. 10.2 - Work each problem. (See Example 6.) Dr Pepper and...Ch. 10.2 - Natural Science The table gives the average...Ch. 10.2 - Natural Science The table gives the average...Ch. 10.2 - For Exercises 32-33 determine the shape of the...Ch. 10.2 - For Exercises 32-33 determine the shape of the...Ch. 10.2 - Prob. 34E Ch. 10.2 - Prob. 35E Ch. 10.2 - For Exercises 36-38, calculate the weighted...Ch. 10.2 - For Exercises 36-38, calculate the weighted...Ch. 10.2 - For Exercises 36-38, calculate the weighted...Ch. 10.2 - Prob. 39E Ch. 10.2 - For Exercises 36-38, calculate the weighted...Ch. 10.3 - Checkpoint 1 Find the range for this sample of the...Ch. 10.3 - Checkpoint 2 Find the deviations from the mean for...Ch. 10.3 - Checkpoint 3 Find the standard deviation for a...Ch. 10.3 - Prob. 4CP Ch. 10.3 - Prob. 1E Ch. 10.3 - Prob. 2E Ch. 10.3 - Prob. 3E Ch. 10.3 - Prob. 4E Ch. 10.3 - Prob. 5E Ch. 10.3 - Prob. 6E Ch. 10.3 - Prob. 7E Ch. 10.3 - Finance Use the following table for Exercises...Ch. 10.3 - Finance Use the following table for Exercises...Ch. 10.3 - Prob. 10E Ch. 10.3 - Education Find the standard deviation for the...Ch. 10.3 - Prob. 12E Ch. 10.3 - Prob. 13E Ch. 10.3 - Prob. 14E Ch. 10.3 - Prob. 15E Ch. 10.3 - Prob. 16E Ch. 10.3 - Prob. 17E Ch. 10.3 - Prob. 18E Ch. 10.3 - Prob. 19E Ch. 10.3 - Prob. 20E Ch. 10.3 - Prob. 21E Ch. 10.3 - Prob. 22E Ch. 10.3 - Prob. 23E Ch. 10.3 - Movie Studios' Revenue For Exercises 23-28, use...Ch. 10.3 - Prob. 25E Ch. 10.3 - Prob. 26E Ch. 10.3 - Prob. 27E Ch. 10.3 - Prob. 28E Ch. 10.3 - Prob. 29E Ch. 10.3 - Prob. 30E Ch. 10.3 - Prob. 34E Ch. 10.3 - Prob. 31E Ch. 10.3 - Prob. 32E Ch. 10.3 - Prob. 33E Ch. 10.3 - IBM and Microsoft Revenue The following table...Ch. 10.3 - Prob. 36E Ch. 10.3 - Prob. 37E Ch. 10.3 - Prob. 38E Ch. 10.3 - IBM and Microsoft Revenue The following table...Ch. 10.3 - Prob. 40E Ch. 10.3 - Prob. 41E Ch. 10.3 - Prob. 42E Ch. 10.3 - Prob. 43E Ch. 10.3 - Prob. 44E Ch. 10.3 - Prob. 45E Ch. 10.3 - Prob. 46E Ch. 10.3 - Prob. 47E Ch. 10.3 - Prob. 48E Ch. 10.4 - Prob. 1CP Ch. 10.4 - Prob. 2CP Ch. 10.4 - Prob. 3CP Ch. 10.4 - Prob. 4CP Ch. 10.4 - Prob. 5CP Ch. 10.4 - Prob. 6CP Ch. 10.4 - Prob. 7CP Ch. 10.4 - 1. The peak in a normal curve occurs directly...Ch. 10.4 - Prob. 2E Ch. 10.4 - Prob. 3E Ch. 10.4 - Prob. 4E Ch. 10.4 - Prob. 5E Ch. 10.4 - Prob. 6E Ch. 10.4 - Prob. 7E Ch. 10.4 - Prob. 8E Ch. 10.4 - Find the percentage of the total area under the...Ch. 10.4 - Prob. 10E Ch. 10.4 - Prob. 11E Ch. 10.4 - Prob. 12E Ch. 10.4 - Prob. 13E Ch. 10.4 - Prob. 14E Ch. 10.4 - Prob. 15E Ch. 10.4 - Prob. 16E Ch. 10.4 - Prob. 17E Ch. 10.4 - Prob. 18E Ch. 10.4 - Prob. 19E Ch. 10.4 - 20. Using Chebyshev’s theorem and the normal...Ch. 10.4 - Prob. 21E Ch. 10.4 - Prob. 22E Ch. 10.4 - Prob. 23E Ch. 10.4 - Prob. 24E Ch. 10.4 - Prob. 25E Ch. 10.4 - Prob. 26E Ch. 10.4 - Prob. 27E Ch. 10.4 - Prob. 28E Ch. 10.4 - Prob. 29E Ch. 10.4 - Prob. 30E Ch. 10.4 - Prob. 31E Ch. 10.4 - Prob. 32E Ch. 10.4 - Prob. 33E Ch. 10.4 - Prob. 34E Ch. 10.4 - Prob. 35E Ch. 10.4 - Prob. 36E Ch. 10.4 - Prob. 37E Ch. 10.4 - Prob. 38E Ch. 10.4 - Prob. 39E Ch. 10.4 - Prob. 40E Ch. 10.4 - Prob. 41E Ch. 10.4 - Prob. 42E Ch. 10.4 - Prob. 43E Ch. 10.4 - Prob. 44E Ch. 10.4 - Prob. 45E Ch. 10.4 - Prob. 46E Ch. 10.4 - Prob. 47E Ch. 10.4 - Prob. 48E Ch. 10.4 - Prob. 49E Ch. 10.4 - Education The mean performance score of a large...Ch. 10.4 - Prob. 51E Ch. 10.4 - Prob. 52E Ch. 10.4 - Job Satisfaction According to a 2016 study...Ch. 10.4 - Prob. 54E Ch. 10.4 - Prob. 55E Ch. 10.4 - Prob. 56E Ch. 10.4 - Prob. 57E Ch. 10.4 - Prob. 58E Ch. 10.4 - Student Loan Debt According to a report from the...Ch. 10.4 - Prob. 60E Ch. 10.4 - Prob. 61E Ch. 10.4 - Prob. 62E Ch. 10 - NASDAQ 100 Stocks For Exercises 1-10, the data...Ch. 10 - Prob. 2RE Ch. 10 - Prob. 3RE Ch. 10 - Prob. 4RE Ch. 10 - Prob. 5RE Ch. 10 - Prob. 6RE Ch. 10 - NASDAQ 100 Stocks For Exercises 1-10, the data...Ch. 10 - Prob. 8RE Ch. 10 - Prob. 9RE Ch. 10 - Prob. 10RE Ch. 10 - Prob. 11RE Ch. 10 - Prob. 12RE Ch. 10 - Prob. 13RE Ch. 10 - Prob. 14RE Ch. 10 - Prob. 15RE Ch. 10 - Prob. 16RE Ch. 10 - Prob. 17RE Ch. 10 - Prob. 18RE Ch. 10 - Prob. 19RE Ch. 10 - Prob. 20RE Ch. 10 - Prob. 21RE Ch. 10 - Prob. 22RE Ch. 10 - Prob. 23RE Ch. 10 - Prob. 24RE Ch. 10 - Find the standard deviation for each of the given...Ch. 10 - Prob. 26RE Ch. 10 - Prob. 27RE Ch. 10 - Prob. 28RE Ch. 10 - Prob. 29RE Ch. 10 - Prob. 30RE Ch. 10 - Prob. 31RE Ch. 10 - Prob. 32RE Ch. 10 - Prob. 33RE Ch. 10 - Prob. 34RE Ch. 10 - Prob. 35RE Ch. 10 - Prob. 36RE Ch. 10 - Arm Circumference Data from a recent National...Ch. 10 - Prob. 38RE Ch. 10 - Prob. 39RE Ch. 10 - Prob. 40RE Ch. 10 - Prob. 41RE Ch. 10 - Prob. 42RE Ch. 10 - Prob. 43RE Ch. 10 - Prob. 44RE Ch. 10 - Prob. 45RE Ch. 10 - Prob. 46RE Ch. 10 - Prob. 47RE Ch. 10 - College or University Education A recent...Ch. 10 - College or University Education A recent...Ch. 10 - Prob. 50RE Ch. 10 - Prob. 51RE Ch. 10 - Prob. 52RE Ch. 10 - Prob. 53RE Ch. 10 - Prob. 54RE Ch. 10 - Prob. 1CE Ch. 10 - Prob. 2CE Ch. 10 - Prob. 3CE Ch. 10 - Prob. 4CE Ch. 10 - Prob. 5CE Ch. 10 - Prob. 6CE Ch. 10 - Prob. 7CE Ch. 10 - Prob. 8CE Ch. 10 - Prob. 9CE Ch. 10 - Prob. 10CE

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Solution Summary: The author calculates the Nan's final average in the class where she earned 73% on the homework, 78% on her quizzes, and 91%, 93% and 83%.

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Chapter 10 Solutions