SOLUTION: I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.21 and the probability that the temperature will be less than 15 degrees is 0.14 an

Question 863316: I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.21 and the probability that the temperature will be less than 15 degrees is 0.14 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 richwmiller(17219) (Show Source): You can put this solution on YOUR website!
before knowing about the .13 probability
.21+.14=.35
1-.35=.65
65% chance the BBQ will happen
The .13 is for both things happening at the same time.
I am not sure if you need to deal with that. The original "or" might deal with it.
If not, it is 1-.13-.14-.21=.52=52%
so it is either .65 or .52
that the bbq will happen.

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