2. Fueleconomy.gov gives the city and highway fuel economy for all makes and models of vehicles back to 1984. The scatterplot displays the city and highway fuel economy (mpg) for a random sample of ten 2021 vehicles. 14.4 24.3 27.2 29.9 20.4 28.8 20.9 23.2 28.6 25.4 25.5 37.4 36.5 45.5 28.7 46.1 38.3 41.3 35.3 City fuel economy (mpg) Highway fuel economy (mpg) a. The correlation between city fuel economy and highway fuel economy for these 10 vehicles is r = 0.917. Interpret this value. Highmay feel eens (W) U2 % 48 DES 38- 36 $2 M b. If fuel economy was measured in feet per gallon, rather than miles per gallon how would the value of the correlation be affected? Explain. 14 16 33.6 18 x City fuel econy (mg) c. The Rolls-Royce Ghost EWB gets 14.4 city mpg and 25.5 highway mpg. What affect does this point have on the correlation? Explain.
2. Fueleconomy.gov gives the city and highway fuel economy for all makes and models of vehicles back to 1984. The scatterplot displays the city and highway fuel economy (mpg) for a random sample of ten 2021 vehicles. 14.4 24.3 27.2 29.9 20.4 28.8 20.9 23.2 28.6 25.4 25.5 37.4 36.5 45.5 28.7 46.1 38.3 41.3 35.3 City fuel economy (mpg) Highway fuel economy (mpg) a. The correlation between city fuel economy and highway fuel economy for these 10 vehicles is r = 0.917. Interpret this value. Highmay feel eens (W) U2 % 48 DES 38- 36 $2 M b. If fuel economy was measured in feet per gallon, rather than miles per gallon how would the value of the correlation be affected? Explain. 14 16 33.6 18 x City fuel econy (mg) c. The Rolls-Royce Ghost EWB gets 14.4 city mpg and 25.5 highway mpg. What affect does this point have on the correlation? Explain.
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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2. Fueleconomy.gov gives the city and highway fuel economy for all makes and models of
vehicles back to 1984. The scatterplot displays the city and highway fuel economy (mpg)
for a random sample of ten 2021 vehicles.
14.4 24.3 27.2 29.9 20.4 28.8 20.9 23.2 28.6 25.4
City fuel economy
(mpg)
Highway fuel
economy (mpg)
25.5 37.4 36.5 45.5 28.7 46.1 33.6
38.3 41.3 35.3
a. The correlation between city fuel
economy and highway fuel economy
for these 10 vehicles is r = 0.917.
Interpret this value.
44-
42-
40-
38-
30-
34
32
10-
25-
b. If fuel economy was measured in feet
per gallon, rather than miles per
gallon how would the value of the correlation be affected? Explain.
15
14
18
20
City fuel economy (mg)
Date:
33 10
c. The Rolls-Royce Ghost EWB gets 14.4 city mpg and 25.5 highway mpg. What affect
does this point have on the correlation? Explain.
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