SOLUTION: I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.28 and the probability that the temperature will be less than 15 degrees is 0.07 an

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Question 863373: I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.28 and the probability that the temperature will be less than 15 degrees is 0.07 and I have decided that I will not have the barbeque if it either rains or is colder than 15 degrees, what is the probaility that the barbeque will go ahead? I also know that in June the probability of the temperature being less than 15 degrees and it also raining is 0.13. Give your answer to 2 decimal places
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, Previously Posted one example

will not have the barbeque if it either rains or is colder than 15 degrees

P(no BBQ) = P(A or B) = P(A) + P(B) - P(A and B) = .28 + .07- .13 = .22

P(have BBQ) = 1 - .22 = .78