12th Edition

ISBN: 9781337630580

Author: Dale Ewen

Publisher: Cengage Learning

Concept explainers

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.

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …

Profit and Loss

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

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…

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Textbook Question

Chapter 15.8, Problem 10E

The following dollar amounts are traffic fines collected in one day in a village. Make a frequency distribution and use it to find the mean amount of the fines.

$30, $28, $15, $14, $32, $67, $45, $30, $17, $25, $30, $19, $27, $32, $51, $45, $36, $42, $72, $50, $18, $41, $23, $32, $35, $46, $50, $61, $82, $78, $39, $42, $27, $20

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Chapter 15.8, Problem 9E

Chapter 15.8, Problem 11E

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Chapter 15 Solutions

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Solution Summary: The author calculates the frequency distribution of the following amounts and uses it to find the mean fine amount.

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