The food services department of WSS Cinema is studying the amount spent by an individual on food and drinks during his visit per day. A sample of 40 individuals who visited the cinema yesterday revealed they spent the following amounts. P145 142 140 139 P122 130 128 126 Total P180 P138 155 195 150 193 148 190 Tally P155 163 160 160 Class Boundaries P170 178 175 170 P186 185 184 182 a. Organize the data into frequency distribution using Rule 2. b. Find the class boundaries, relative frequencies, cumulative frequency, and midpoints. Solution: Class P 165 168 165 165 Relative Frequency Frequency P200 120 115 110 Cumulative Frequency ………. P100 220 210 205 Midpoints

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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The food services department of WSS Cinema is studying the amount spent by an individual
on food and drinks during his visit per day. A sample of 40 individuals who visited the
cinema yesterday revealed they spent the following amounts.
P145 P122
142
130
140
128
139
126
Total
Tally
P138
155
150
148
www.
P180 P155
195
163
193
160
190
160
P170
178
175
170
a. Organize the data into frequency distribution using Rule 2.
b. Find the class boundaries, relative frequencies, cumulative frequency, and midpoints.
Solution:
Class
Class
Boundaries
P186
185
184
182
Frequency
P 165
168
165
165
Relative
Frequency
P200
120
115
110
Cumulative
Frequency
……….
P100
220
210
205
Midpoints
Transcribed Image Text:The food services department of WSS Cinema is studying the amount spent by an individual on food and drinks during his visit per day. A sample of 40 individuals who visited the cinema yesterday revealed they spent the following amounts. P145 P122 142 130 140 128 139 126 Total Tally P138 155 150 148 www. P180 P155 195 163 193 160 190 160 P170 178 175 170 a. Organize the data into frequency distribution using Rule 2. b. Find the class boundaries, relative frequencies, cumulative frequency, and midpoints. Solution: Class Class Boundaries P186 185 184 182 Frequency P 165 168 165 165 Relative Frequency P200 120 115 110 Cumulative Frequency ………. P100 220 210 205 Midpoints
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