3.) In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest thousand dollars. Income range 5-15 15-25 25-35 35-45 45-55 55 or more Midpoint 10 20 30 40 50 60 Percent of super shoppers 21% 14% 22% 15% 20% 8% a. Draw a histogram to graph the probability distribution b. Compute the expected income μ of a super shopper. c. Compute the standard deviation σ for the income of super shoppers.
3.) In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest thousand dollars. Income range 5-15 15-25 25-35 35-45 45-55 55 or more Midpoint 10 20 30 40 50 60 Percent of super shoppers 21% 14% 22% 15% 20% 8% a. Draw a histogram to graph the probability distribution b. Compute the expected income μ of a super shopper. c. Compute the standard deviation σ for the income of super shoppers.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
Problem 4CA
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Transcribed Image Text:In the following table, income units are in thousands of dollars, and each interval goes up to but
does not include the given high value. The midpoints are given to the nearest thousand dollars.
Income range
5-15
15-25
25-35 35-45
45-55 55 or more
Midpoint
10
20
30
40
50
60
Percent of super shoppers
21%
14%
22%
15%
20%
8%
a.
Draw a histogram to graph the probability distribution
b. Compute the expected income μ of a super shopper.
c. Compute the standard deviation σ for the income of super shoppers.
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