A paper studied various aspects of bus service and presented data on travel times from several different
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Question:
A paper studied various aspects of bus service and presented data on travel times from several different routes. The accompanying frequency distribution is for bus travel times from origin to destination on one particular route in Chicago during peak morning traffic.
Class | Frequency | Relative Frequency |
15 to <16 | 4 | 0.02 |
16 to < 17 | 0 | 0.00 |
17 to <18 | 26 | .15 |
18 to < 19 | 9 | 9.49 |
19 to <20 | 3 | 6.16 |
20 to < 21 | 8 | .04 |
21 to < 22 | 12 | .06 |
22 to < 23 | 0.0 | 0 |
23 to < 24 | 0.0 | 0 |
24 to < 25 | 0.0 | 0 |
25 to <26 | 16 | .08 |
Compute (approximately) the percentiles.
a) 90th percentile.
b) 97th percentile.
c) 10th percentile.
Related Book For
Probability and Statistics for Engineering and the Sciences
ISBN: 978-1305251809
9th edition
Authors: Jay L. Devore
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