(2) Here are grades collected from freshmen and sophomores Grade A B C D F total 15 9 10 16 20 15 6 13 14 33 31 29 44 35 Freshmen F 70 Sophomores S 8 Juniors J 14 11 54 10 7 4 48 total 172
(2) Here are grades collected from freshmen and sophomores Grade A B C D F total 15 9 10 16 20 15 6 13 14 33 31 29 44 35 Freshmen F 70 Sophomores S 8 Juniors J 14 11 54 10 7 4 48 total 172
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 19E
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Question
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Transcribed Image Text:(2) Here are grades collected from freshmen and sophomores
Grade
A
F
total
Freshmen F
15
9.
10 16 20
70
Sophomores S 8
14 11
13 14
33 31 29 44 35
15
6.
54
Juniors J
10
7
4
48
total
172
If a person is randomly selected from this class, what is the probability that the
a) is a junior
b) is a sophomore and made a B
c) is a freshman, given that the student made an A
d) made an C, given that the student was a junior?
e) is a junior or made a D?
person
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