SOLUTION: Drinks are prepared and arranged on a table for a party. The probability that a drink is grape juice is 0.3. The probability that a drink has a straw is 0.3. The probability that a

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Question 1068353: Drinks are prepared and arranged on a table for a party. The probability that a drink is grape juice is 0.3. The probability that a drink has a straw is 0.3. The probability that a drink is grape juice and has a straw is 0.1.
Use the addition rule to determine the probability that a drink is grape juice or has a straw.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
P (or event) is P(A)+P(B)-P(A and B)=0.3+0.3-0.1=0.5