а. Which state has a shorter median commuting time? Explain. b. Which state would have a greater standard deviation? How do you know? c. The shape of the distribution of travel times in North Carolina would be characterized as roughly symmetric, skewed right, or skewed left? Briefly explain. d. Identify the 75th percentile of North Carolina's commuting times and explain what this means.
а. Which state has a shorter median commuting time? Explain. b. Which state would have a greater standard deviation? How do you know? c. The shape of the distribution of travel times in North Carolina would be characterized as roughly symmetric, skewed right, or skewed left? Briefly explain. d. Identify the 75th percentile of North Carolina's commuting times and explain what this means.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question

Transcribed Image Text:20. An investigator wished to compute all travel times between New York and North Carolina. The following
plot summarizes the travel times for the two states (with time in minutes).
New York
North Carolinat
60
40
Travel Time to Work (minutes)
а.
Which state has a shorter median commuting time? Explain.
b. Which state would have a greater standard deviation? How do
you
know?
The shape of the distribution of travel times in North Carolina would be characterized as roughly
symmetric,
skewed right, or skewed left? Briefly explain.
С.
d. Identify the 75th percentile of North Carolina's commuting times and explain what this means.
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