SOLUTION: An ice-cream flavour survey of 720 people revealed that 300 people liked green tea, 260 people liked chocolate, while 50 people liked both. What is the probability that one person

Question 1190785: An ice-cream flavour survey of 720 people revealed that 300 people liked green tea, 260 people liked chocolate, while 50 people liked both. What is the probability that one person selected at random from the survey would like green tea or chocolate?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
P(A or B)=P(A)+P(B)-P (both)
denominator is 720
numerator is 300+260-50 (double counted)=510
510/720 or 17/24, which may be converted to a decimal.
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