what is the probability that it will rain on each of the next 3 days, if the probability of raining on any single day is the same in that period?
1) the probability of no rain thought out the first 2 days is 36%.
2) the probability of the rain on the 3rd day is 40%.
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vaibhav101
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Say the probability that it will rain on any day = p, thus, the probability that it will NOT rain on any day = (1 - p)vaibhav101 wrote:what is the probability that it will rain on each of the next 3 days, if the probability of raining on any single day is the same in that period?
1) the probability of no rain thought out the first 2 days is 36%.
2) the probability of the rain on the 3rd day is 40%.
We have to get the value of p*p*p = p^3.
=> Question rephrased: What's the value of p?
Let's take each statement one by one.
1) the probability of no rain thought out the first 2 days is 36%.
=> (1 - p)*(1 - p) = 0.36
(1 - p)^2 = (0.6)^2
(1 - p) = 0.6 => p =0.4. Sufficient.
2) the probability of the rain on the 3rd day is 40%.[/quote]
=> p = 0.4. Sufficient.
The correct answer: D
Hope this helps!
-Jay
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