Styles The following table shows the price of a text book for quantitative methods in different stores in Zambia: Sorted prices for a text book 113 145 166 120 123 126 128 129 136 146 147 152 153. 153 159 166 167 169 169 170 172 139 142 143 163 165 161 180 183 199 Assuming the prices are normally distributed; (i) Find the mean of the prices. (ii) Find the standard deviation of the prices. (iii) Find the percentage of values within one standard deviation around the mean.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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14 A A Aa-E·E·G·
x, x² A--A
Font
Paragraph
A-E
The following table shows the price of a text book for quantitative methods in different stores in
Zambia:
Sorted prices for a text book
113
145
166
120 123 126 128
146
147
152
153
166 167
169
169
AaBbCcDe AaBbCcDc AaBbC AaBbCct AaB AaBbCcL AaBbCcDa
Heading 2 Title
Subtitle
1 Normal 1 No Spac... Heading 1
Subtle Em...
81
Assuming the prices are normally distributed;
(i)
Find the mean of the prices.
(ii)
Find the standard deviation of the prices.
(iii)
Find the percentage of values within one standard deviation around the
mean.
I
Styles
(iv) Find the percentage of values within two standard deviations around the
mean.
129
136
139 142
143
153
159
161
163
165
170 172 180 183 199
(v) Find the percentage of values within three standard deviations around the
mean.
H
40
bo
27
Transcribed Image Text:References Mailings Review View 14 A A Aa-E·E·G· x, x² A--A Font Paragraph A-E The following table shows the price of a text book for quantitative methods in different stores in Zambia: Sorted prices for a text book 113 145 166 120 123 126 128 146 147 152 153 166 167 169 169 AaBbCcDe AaBbCcDc AaBbC AaBbCct AaB AaBbCcL AaBbCcDa Heading 2 Title Subtitle 1 Normal 1 No Spac... Heading 1 Subtle Em... 81 Assuming the prices are normally distributed; (i) Find the mean of the prices. (ii) Find the standard deviation of the prices. (iii) Find the percentage of values within one standard deviation around the mean. I Styles (iv) Find the percentage of values within two standard deviations around the mean. 129 136 139 142 143 153 159 161 163 165 170 172 180 183 199 (v) Find the percentage of values within three standard deviations around the mean. H 40 bo 27
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