If a student is picked at random, what is the probability that a) he or she is a full-time student or works part time? b) he or she is a full-time student and works part time?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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c) he or she is a part-time student or does not work?
d) he or she is a part-time student and does not work?
e) he or she is a full-time student and does not work?
f) he or she is a part-time student or works full time?
Transcribed Image Text:c) he or she is a part-time student or does not work? d) he or she is a part-time student and does not work? e) he or she is a full-time student and does not work? f) he or she is a part-time student or works full time?
(3) A survey was taken at a local college campus. The survey asked if the student was a
full-time student or a part-time student and if he or she worked full time or part time.
The following chart illustrates the (empirical) results.
Did not work
Worked part time
Worked full time
Full-time student
0.15
0.22
0.14
Part-time student
0.09
0.21
0.19
If a student is picked at random, what is the probability that
a) he or she is a full-time student or works part time?
b) he or she is a full-time student and works part time?
Transcribed Image Text:(3) A survey was taken at a local college campus. The survey asked if the student was a full-time student or a part-time student and if he or she worked full time or part time. The following chart illustrates the (empirical) results. Did not work Worked part time Worked full time Full-time student 0.15 0.22 0.14 Part-time student 0.09 0.21 0.19 If a student is picked at random, what is the probability that a) he or she is a full-time student or works part time? b) he or she is a full-time student and works part time?
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