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# Solved: Graph a step function that represents this situation

ISBN: 9780078778568 361

## Solution for problem 41 Chapter 2.6

California Algebra 2: Concepts, Skills, and Problem Solving | 1st Edition

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California Algebra 2: Concepts, Skills, and Problem Solving | 1st Edition

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Problem 41

Graph a step function that represents this situation.

Step-by-Step Solution:
Step 1 of 3

Sampling 1/23/17 Sample is usually smaller than population  Ex. 100 out of 500 people at a concert  Ex. 300 out of 20,000 students at the U of M Census – need to know everyone’s opinions Convenient sample – easy for the person doing the sample Examples:  People who have a 9:20 am class o n = size of the sample, n = 70  representative random sample o 31 of 70 said “yes” o 31/70 = .44 = 44% o 1/√n = 1/√70 = 0.1195 = 0.12 = 12% o Margin of error  44% +/- 12% = 32%, 56%  Population will be a range of 2 numbers  53 out of 100 people o n = 100 o 1/√n = 1/√100 = 1/10 = 0.1 = 10% o Margin of error  53

Step 2 of 3

Step 3 of 3

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Solved: Graph a step function that represents this situation