A statistician wanted to study how homeowners in a city get to work. She conducted a survey,
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Question:
A statistician wanted to study how homeowners in a city get to work. She conducted a survey, which consisted of a sample of 1,000 homeowners and 800 renters.
Drives to Work Homeowner Renter Total
_____________________________________________________________
Yes 650 300 950
No 350 500 850
_____________________________________________________________
Total 1000 800 1800
If a respondent is selected at random, what is the probability that he or she
a.drives to work?
b.drives to work and is a homeowner?
c.drives to work or is a homeowner?
d.Explain the difference in the results in (b) and (c).
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