38. Parking lots A survey of autos parked in student and staff lots at a large university classified the brands by country of origin, as seen in the table. Origin American European Asian Driver Student 107 33 55 Staff 105 12 47 a) What percent of all the cars surveyed were foreign? b) What percent of the American cars were owned by students? c) What percent of the students owned American cars?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 21PFA
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38. Parking lots A survey of autos parked in student and staff lots
at a large university classified the brands by country of origin,
as seen in the table.
Origin
American
European
Asian
Driver
Student
107
33
55
Staff
105
12
47
a) What percent of all the cars surveyed were foreign?
b) What percent of the American cars were owned by students?
c) What percent of the students owned American cars?
d) What is the marginal distribution of origin?
e) What are the conditional distributions of origin by driver
classification?
f) Do you think that the origin of the car is independent of the
type of driver? Explain.
Transcribed Image Text:38. Parking lots A survey of autos parked in student and staff lots at a large university classified the brands by country of origin, as seen in the table. Origin American European Asian Driver Student 107 33 55 Staff 105 12 47 a) What percent of all the cars surveyed were foreign? b) What percent of the American cars were owned by students? c) What percent of the students owned American cars? d) What is the marginal distribution of origin? e) What are the conditional distributions of origin by driver classification? f) Do you think that the origin of the car is independent of the type of driver? Explain.
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