a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on. Construct a frequency distribution. Cost ($) Frequency 80 but less than 100 100 but less than 120 120 but less than 140 140 but less than 160 160 but less than 180 180 but less than 200 200 but less than 220 Construct a percentage distribution. Cost ($) Percentage 80 but less than 100 % 100 but less than 120 120 but less than 140 % 140 but less than 160 160 but less than 180 % 180 but less than 200 200 but less than 220 (Round to two decimal places as needed.) Percentage Less Than Indicated Amount b. Construct a cumulative percentage Cost ($) distribution. 80 % 100 120 % 140 % 160 % 180 % 200 220 (Round to two decimal places as needed.) c. Around what amount does the monthly electricity cost seem to be concentrated? Choose the correct answer below. O A. Between $80 and $140 O B. Between $120 and $180 O C. Between $160 and $220 O D. Between $100 and $160 O E. Between $140 and $200
a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on. Construct a frequency distribution. Cost ($) Frequency 80 but less than 100 100 but less than 120 120 but less than 140 140 but less than 160 160 but less than 180 180 but less than 200 200 but less than 220 Construct a percentage distribution. Cost ($) Percentage 80 but less than 100 % 100 but less than 120 120 but less than 140 % 140 but less than 160 160 but less than 180 % 180 but less than 200 200 but less than 220 (Round to two decimal places as needed.) Percentage Less Than Indicated Amount b. Construct a cumulative percentage Cost ($) distribution. 80 % 100 120 % 140 % 160 % 180 % 200 220 (Round to two decimal places as needed.) c. Around what amount does the monthly electricity cost seem to be concentrated? Choose the correct answer below. O A. Between $80 and $140 O B. Between $120 and $180 O C. Between $160 and $220 O D. Between $100 and $160 O E. Between $140 and $200
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The table below contains data about the cost of electricity during a recent month for a random sample of 30 one-bedroom apartments in a large city. Complete parts (a) through (c) below.
163
139
93
152
128
106
183
114
170
175
102
98
188
147
161
122
202
115
174
91
173
205
123
154
154
148
109
127
145
133
a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on.
Construct a frequency distribution.
Cost ($)
Frequency
80
but less than
100
100
but less than
120
120
but less than
140
140
but less than
160
160
but less than
180
180
but less than 200
200
but less than 220
Construct a percentage distribution.
Cost ($)
Percentage
80
but less than
100
100
but less than
120
%
120
but less than
140
%
140
but less than
160
%
160
but less than
180
180
but less than
200
200
but less than 220
(Round to two decimal places as needed.)
b. Construct a cumulative percentage
distribution.
Percentage Less Than
Indicated Amount
Cost ($)
80
100
%
120
%
%
%
%
140
160
180
200
%
220
(Round to two decimal places as needed.)
c. Around what amount does the monthly electricity cost seem to be concentrated? Choose the correct answer below.
O A. Between $80 and $140
O B. Between $120 and $180
O C. Between $160 and $220
O D. Between $100 and $160
O E. Between $140 and $200
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