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For the speed data in the table below, find the mean speed and the Standard Devaition of speed. Also find the 85th percentile, the 15th percentile and the median (50th percentile) speed from the cumulative frequency curve. Also find the Pace and Mode.

For the speed data in the table below, find the mean speed and the Standard Devaition of speed. Also find the 85th percentile, the 15th percentile and the median (50th percentile) speed from the cumulative frequency curve. Also find the Pace and Mode.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Please solve this question. Subject: Transportation engineering . Problem No.5 For the speed data in the table below, find the mean speed and the Standard Devaition of speed. Also find the 85th percentile, the 15th percentile and the median (50th percentile) speed from the cumulative frequency curve. Also find the Pace and Mode.
Speed Group Middle Observed Percent Cumulative Lower Upper speed (mi/h) (S) Frequency Frequency in Group in Group (%) (n) Percent limit limit nS n(S)? Frequency (mi/h) (mi/h) (%) 32 34 34 36 7 36 38 6. 38 40 9. 40 42 15 42 44 25 44 46 34 46 48 47 48 50 63 50 52 36 52 54 21 54 56 15 56 58 58 60 7 60 62 3 62 64 296 Total
Transcribed Image Text:Speed Group Middle Observed Percent Cumulative Lower Upper speed (mi/h) (S) Frequency Frequency in Group in Group (%) (n) Percent limit limit nS n(S)? Frequency (mi/h) (mi/h) (%) 32 34 34 36 7 36 38 6. 38 40 9. 40 42 15 42 44 25 44 46 34 46 48 47 48 50 63 50 52 36 52 54 21 54 56 15 56 58 58 60 7 60 62 3 62 64 296 Total
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