4. The monthly cell phone bills for 100 senior citizens are summarized in the following frequency distribution table:| Cell Phone Bill (in dollars) Frequency 10 to less than 20 20 to less than 30 1 9 30 to less than 40 10 40 to less than 50 26 50 to less than 60 43 60 to less than 70 Total 11 100 a. Using the frequency distribution table, calculate the mean cell phone bill amount. Note: You may add columns to the table to assist you with your work. b. Using the frequency distribution table, and treating the data as population data, calculate the standard deviation of cell phone bill amount. Note: You may add columns to the table to assist you with your work. c. Estimate the class range that contains the median cell phone bill amount.

4. The monthly cell phone bills for 100 senior citizens are summarized in the following frequency distribution table:| Cell Phone Bill (in dollars) Frequency 10 to less than 20 20 to less than 30 1 9 30 to less than 40 10 40 to less than 50 26 50 to less than 60 43 60 to less than 70 Total 11 100 a. Using the frequency distribution table, calculate the mean cell phone bill amount. Note: You may add columns to the table to assist you with your work. b. Using the frequency distribution table, and treating the data as population data, calculate the standard deviation of cell phone bill amount. Note: You may add columns to the table to assist you with your work. c. Estimate the class range that contains the median cell phone bill amount.

Name: stats 4. The monthly cell phone bills for 100 senior citizens are summ
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Description: stats 4. The monthly cell phone bills for 100 senior citizens are summarized in the following frequencydistribution table:|Cell Phone Bill (in dollars) Frequency10 to less than 2020 to less than 301930 to less than 401040 to less than 502650 to less

MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

stats

4. The monthly cell phone bills for 100 senior citizens are summarized in the following frequency
distribution table:|
Cell Phone Bill (in dollars) Frequency
10 to less than 20
20 to less than 30
1
9
30 to less than 40
10
40 to less than 50
26
50 to less than 60
43
60 to less than 70
Total
11
100
a. Using the frequency distribution table, calculate the mean cell phone bill amount. Note: You
may add columns to the table to assist you with your work.
b. Using the frequency distribution table, and treating the data as population data, calculate the
standard deviation of cell phone bill amount. Note: You may add columns to the table to assist
you with your work.
c. Estimate the class range that contains the median cell phone bill amount.
d. Does the data appear to be skewed? If yes, in what direction? Describe how you came to this
conclusion.
e. Circle True (T) or False (F) for the following statement:
T F Selecting 100 senior citizens out of 500 who live in a particular town in order to calculate
the mean cell phone bill of seniors in the town is an example of sampling without
replacement.

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