The following table gives the frequency distribution of the amounts of telephone bills for August 2012 for a sample of 50 families. Amount of Telephone Bill (dollars) Number of Families 40 to less than 70 3 70 to less than 100 14 100 to less than 130 10 130 to less than 160 5 160 to less than 190 18 Calculate the mean, variance, and standard deviation. Round your answers to two decimal places. Mean = $ Enter you answer; Mean Variance = Enter you answer; Variance Standard deviation = $ Enter you answer; Standard deviation
The following table gives the frequency distribution of the amounts of telephone bills for August 2012 for a sample of 50 families. Amount of Telephone Bill (dollars) Number of Families 40 to less than 70 3 70 to less than 100 14 100 to less than 130 10 130 to less than 160 5 160 to less than 190 18 Calculate the mean, variance, and standard deviation. Round your answers to two decimal places. Mean = $ Enter you answer; Mean Variance = Enter you answer; Variance Standard deviation = $ Enter you answer; Standard deviation
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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The following table gives the frequency distribution of the amounts of telephone bills for August 2012 for a sample of 50 families.
Amount of Telephone Bill (dollars) |
Number of Families |
---|---|
40 to less than 70 |
3 |
70 to less than 100 |
14 |
100 to less than 130 |
10 |
130 to less than 160 |
5 |
160 to less than 190 |
18 |
Calculate the mean, variance, and standard deviation.
Round your answers to two decimal places.
Mean = $ Enter you answer; Mean
Variance = Enter you answer; Variance
Standard deviation = $ Enter you answer; Standard deviation
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