Giving a test to a group of students, results are summarized in the table. A B C Total Senior 19 5 18 42 Junior 8 17 7 32 Total 27 22 25 74 If one student was chosen at random, find the probability that the student got an A or a B on the test. Write your answer as a reduced fraction or whole number. P(A or B) = ?

Giving a test to a group of students, results are summarized in the table. A B C Total Senior 19 5 18 42 Junior 8 17 7 32 Total 27 22 25 74 If one student was chosen at random, find the probability that the student got an A or a B on the test. Write your answer as a reduced fraction or whole number. P(A or B) = ?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

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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