SOLUTION: At a golf tournament 10 golfers , 6 of them are girls 2 of the girls are over 40 , 3 of the men are over 40 . What is the probability that the winner is a girl or over 40 ?

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Question 475702: At a golf tournament 10 golfers , 6 of them are girls 2 of the girls are over 40 , 3 of the men are over 40 .
What is the probability that the winner is a girl or over 40 ?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
Note: P(A or B) = P(A) + P(B) - P(A and B)
10 golfers , 6 of them are girls
2 of the girls are over 40 , 3 of the men are over 40 .
P(girl or over 40) = 6/10 + 5/10 - 2/10 = 9/10