For the following description of data, identify the W\'s, name the variables, sp
ID: 3353542 • Letter: F
Question
For the following description of data, identify the W's, name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they were not provided). Specify whether the data come from a designed survey or experiment. Are the variables time series or cross-sectional? Report any concerns you have as well. A certain car race has been run every year since 19101910 in a city. The data for the first few and a few recent races are shown in the accompanying table.
Year
Winner
CarCar
SpeedSpeed
(mphmph)
MarginMargin
(secsec)
Car colorCar color
19101910
Jon Dorian
FordFord
74.96174.961
22
RedRed
19111911
Chris Turkelton
DodgeDodge
75.64475.644
33
YellowYellow
...
20042004
Perry Cox
FordFord
151.039151.039
11
GreenGreen
20052005
Robert Kelso
FordFord
154.865154.865
33
Gray
Specify the quantitative variables and identify the units for this problem. Select all that apply.
A.YearYear;the units are years
B.TimeTime;the units are not specified
C.WinnerWinner;the units are not specified
D.CarCar;the units are not specified
E.SpeedSpeed;the units are mphmph
F.MarginMargin;the units are secsec
G.Car colorCar color;the units are not specified
H.There are no quantitative variables
Year
Winner
CarCar
SpeedSpeed
(mphmph)
MarginMargin
(secsec)
Car colorCar color
19101910
Jon Dorian
FordFord
74.96174.961
22
RedRed
19111911
Chris Turkelton
DodgeDodge
75.64475.644
33
YellowYellow
...
20042004
Perry Cox
FordFord
151.039151.039
11
GreenGreen
20052005
Robert Kelso
FordFord
154.865154.865
33
Gray
Explanation / Answer
Quantitative variables are those which are Numeric and have Unlimited possible values
=> Quantitative variables (and their units) are as follows:-
1. MarginMargin - units are secsec
=> Answer: F ONLY