SOLUTION: Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 16 17 2 35 Female 14 3 18 35 Total 30 20 20 70 If one student was chose

Question 1195689: Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 16 17 2 35
Female 14 3 18 35
Total 30 20 20 70

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) =

Answer by ikleyn(52817) (Show Source): You can put this solution on YOUR website!
.


In this problem, events A and B are disjoint and gender is irrelevant;  therefore


    P(A or B) = P(A) + P(B) =  +  =  +  = .    ANSWER

Solved.

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