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Please only answer 2.8

Please only answer 2.8

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please only answer 2.8
2.8 What is the mean 1 mile running time over 18 weeks? 2.9 What is standard deviation of the 1 mile running time over 18 weeks? TABLE 2.14 One mile running time for an individual, over 18 weeks WK 2 Time (min)(x,) 12.80 12.20 12.25 12.18 11.53 12.47 12.30 12.08 11.72 WK 10 12 Time (min)(x) 12.67 11.92 11.67 11.80 12.33 11.83
Transcribed Image Text:2.8 What is the mean 1 mile running time over 18 weeks? 2.9 What is standard deviation of the 1 mile running time over 18 weeks? TABLE 2.14 One mile running time for an individual, over 18 weeks WK 2 Time (min)(x,) 12.80 12.20 12.25 12.18 11.53 12.47 12.30 12.08 11.72 WK 10 12 Time (min)(x) 12.67 11.92 11.67 11.80 12.33 11.83
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Given that 

The data are 12.80 , 12.20 , 12.25 , 12.18 , 11.53 , 12.47 , 12.30 , 12.08 , 11.72 , 11.57 , 11.73 , 12.67 , 11.92 , 11.67 , 11.80 , 12.33 , 12.55 , 11.83

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