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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question

Transcribed Image Text:9.
The following sample data are the number of points scored in the 25 NBA games played from
November 5-7, 2014.
185
180
217
189
193
181
190
186
193
202
240
225
179
195
241
215
233
199
209
193
187
180
226
187
211
a. Construct a frequency distribution with 5 classes for this data.
b. Draw a histogram and identify the distribution for this data.
C. Calculate the sample mean and standard deviation of this sample of points scored per game.
d. Given the above distribution would it be unusua! to find an NBA game with 150 points scored?
e. Find the maximum and minimum usual values and identify any outliers
t'.
Expert Solution
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Step 1
Given data represents the number of points scored in the 25 NBA games:
(a) To construct frequency distribution with 5 classes for this data:
Start the class interval with minimum value 179 then add class width 13 to each of the lower limits.
Frequency is the number of times an observation occurs in a given class interval.
Frequency distribution table, is given below:
Class Interval | Frequency |
179 - 192 | 10 |
192 - 205 | 6 |
205 - 218 | 4 |
218 - 231 | 2 |
231 - 244 | 3 |
Total | 25 |
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Step 2
(b) Histogram can be obtained using Excel, steps to follow are given below:
- Enter the data in Excel sheet
- Select the data, go to Insert
- Under different chart groups, choose Histogram
- Add chart title and axis titles
Excel output is given below:
The distribution of points per game for these 25 NBA teams is skewed to the right. The spread is from 179 to 241 with no apparent outliers.
Step by stepSolved in 3 steps with 1 images
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