b. what is the unit of observation in this dataset?
The type of car students at a college drive
c. How many subjects did the researchers study in this dataset?
Ford 5, Chevy 12, Honda 6, Toyota 12, Nissan 10, Other 5.
So:
5 + 12 + 6 + 12 + 10 + 5 = 50
d. what is the sample size of this study?
Ford, chevy, honda, toyota, nissa, other
Therefore the sample size is 6
f. why did the researchers collect this dataset?
It can be for several reasons, for example:
_To determine the most popular car brand
_To determine the least popular car brand
g. How many variables are in this dataset?
6 variables