Giving a test to a group of students, the grades and ages are summarized below A B C Total Under 25 18 10 17 45 25 or over 15 2 12 29 Total 33 12 29 74 If one student is chosen at random, Find the probability that the student was under 25 OR got an "B".

Giving a test to a group of students, the grades and ages are summarized below A B C Total Under 25 18 10 17 45 25 or over 15 2 12 29 Total 33 12 29 74 If one student is chosen at random, Find the probability that the student was under 25 OR got an "B".

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter6: Ratio, Proportion, And Probability

Section6.7: Probability And Odds

Problem 2C

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Question

Giving a test to a group of students, the grades and ages are summarized below
A
B
C
Total
Under 25
18
10
17
45
25 or over
15
2
12
29
Total 33
12
29
74
If one student is chosen at random,
Find the probability that the student was under 25 OR got an "B".

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