The status of fifty students, as well as information about whether-or-not they o
ID: 3160493 • Letter: T
Question
The status of fifty students, as well as information about whether-or-not they own a car, is shown here.
car ownership
yew(own a car) no(do not own a car)
student status domestic 21 9
international 8 12
Address all parts of (a), (b), and (c). Report every answer as both a fraction and a decimal rounded to four decimal places. Sentence answers not required.
(a) Suppose one of these fifty students is selected at random. Determine the probability that ...
1. the student owns a car (regardless of their student status).
2.the student is an international student who doesn’t own a car.
(b) Suppose two of these fifty students are selected at random, with replacement. That is, a student is randomly chosen, information about him/her is recorded; he/she is then returned to the group, and so he/she is eligible to be selected again. Determine the probability that ...
1. both students are international students who don’t own a car.
2.the first student is a domestic student who owns a car and the second student is an international student who doesn’t own a car.
(c) Suppose two of these fifty students are selected at random, without replacement. That is, a student is randomly chosen, information about him/her is recorded; he/she is not returned to the group, and so it is not possible for him/her to be selected again. Determine the probability that ...
1.both students are international students who don’t own a car.
2. the first student is a domestic student who owns a car and the second student is an international student who doesn’t own a car.
Explanation / Answer
a.
b.
c.
car ownership student status yes no domestic 21 9 30 international 8 12 20 29 21 50Related Questions
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