I keep getting a different answer than the book and I can't figure out why. The book answer is 27.7 minutes, but I am getting 27.2 minutes 6. Travel Time to Work The frequency distribution listed in thetable represents the travel time to work (in minutes) for arandom sample of 895 U.S. adults.Travel Time (minutes)Frequency0-912510–1927120-2918630-3912140-495450-596260-694370-792080-8913Source: Based on data from the 2009 AmericanCommunity Survey(a) Approximate the mean travel time to work for U.S. adults.(b) Approximate the standard deviation travel time to work forU.S. adults. fiFR125Xifi562.53929.5MINNTES0-910-1920-2930-3940-49so-5960-(0970-7980-894,514,524.534.544,554.564.574.5184.52711864174,5240333792773.514901098.5E xifi= 24367.51215462432013Afisas%3DX={ xifiI fi243675 -1272MINS895A.

Answered: Image /qna-images/answer/f055740b-e359-49a0-9008-fccff335a108.jpg

6. Travel Time to Work The frequency distribution listed in the table represents the travel time to work (in minutes) for a random sample of 895 U.S. adults. Travel Time (minutes) Frequency 0-9 125 10-19 271 20-29 186 30-39 121 40-49 54 50-59 62 60-69 43 70-79 20 80 80 13

6. Travel Time to Work The frequency distribution listed in the table represents the travel time to work (in minutes) for a random sample of 895 U.S. adults. Travel Time (minutes) Frequency 0-9 125 10-19 271 20-29 186 30-39 121 40-49 54 50-59 62 60-69 43 70-79 20 80 80 13

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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Question

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I keep getting a different answer than the book and I can't figure out why. The book answer is 27.7 minutes, but I am getting 27.2 minutes

6. Travel Time to Work The frequency distribution listed in the
table represents the travel time to work (in minutes) for a
random sample of 895 U.S. adults.
Travel Time (minutes)
Frequency
0-9
125
10–19
271
20-29
186
30-39
121
40-49
54
50-59
62
60-69
43
70-79
20
80-89
13
Source: Based on data from the 2009 American
Community Survey
(a) Approximate the mean travel time to work for U.S. adults.
(b) Approximate the standard deviation travel time to work for
U.S. adults.

fi
FR
125
Xifi
562.5
3929.5
MINNTES
0-9
10-19
20-29
30-39
40-49
so-59
60-(09
70-79
80-89
4,5
14,5
24.5
34.5
44,5
54.5
64.5
74.5
184.5
271
186
4174,5
2403
3379
2773.5
1490
1098.5
E xifi= 24367.5
121
54
62
43
20
13
Afi
sas
%3D
X={ xifi
I fi
243675 -1272
MINS
895
A.

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