20 yrs old 10   8   18 Between 20 and 25 yrs old. 12   18   30 Older than 25 yrs. 26   26   52 Total

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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The table below provides summary information about the students in a class. The sex of each individual and their age is given.

 

Male

 

Female

 

Total

Under 20 yrs old

10

 

8

 

18

Between 20 and 25 yrs old.

12

 

18

 

30

Older than 25 yrs.

26

 

26

 

52

Total

48

 

52

 

100


If a student is randomly selected from this group, what is the probability that the student is male?

0.68
0.50
0.48
0.52
0.12
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