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Ryan Kelty

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Q: If there is a 90 chance of rain tomorrow and a 70 chance of wind and rain what is the probability that it is windy given that it is rainy Round your answer to the nearest percent.?
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If there is a 60 chance of rain tomorrow and a 40 chance of wind and rain what is the probability that it is windy given that it is rainy Round your answer to the nearest percent.?

It is 67%.


If there is a 70 chance of rain tomorrow and a 50 chance of wind and rain what is the probability that it is windy given that it is rainy Round your answer to be the nearest percent?

P(R) = 0.7The correct choice of answer is B. 71%.


There is a 20 percent chance of rain today and a 80 percent chance of rain tomorrow If the two events are independent what is the probability that it will rain today or tomorrow?

0.20 + 0.80*0.80


The weather forecast says there is a 60 percent chance of rain today and a 40 percent chance of rain tomorrow What is the probability that it will rain today and tomorrow?

The probability that it will rain today and tomorrow is the multiplication of the probabilities of it raining both days. That is 0.6 X 0.4 = 0.24 So there is a 24% chance that it would rain both days.


If there is a 30 chance of rain on tomorrow what is the probability it will not rain on tomorrow?

There is a 70% chance it will not rain tommorrow! There is a 70% chance it will not rain tommorrow!


There is a 80 percent chance of rain today and a 50 percent chance of rain tomorrow If the two events are independent what is the probability that it will rain today or tomorrow?

It is 1 - prob(it does not rain today and tomorrow)= 1 - prob(it does not rain today)*prob(it does not rain tomorrow) = 1 - [1- prob(it does rain today)]*[1 - prob(it does rain tomorrow)] = 1 - [1 - 0.8]*[1 - 0.5] = 1 - 0.2*0.5 = 1 - 0.1 = 0.9


If there is an 80 percent chance of rain and a 30 percent chance of wind and rain what is the probability that it is windy given that it is rainy Round your answer to the nearest percent.?

To get the answer to this question you need to work out what 30% of 80% is. To do this you need to divide 30, by 80, then multiply your answer by 100. 30/80=0.375, 0.375*100=37.5, 37.5 to the nearest percent is 38%


If there is a 30 chance of sun tomorrow and a 20 chance of wind and no sun what is the probability that it is windy given that it is not sunny Round your answer to the nearest percent A57 B44 C22 D29?

Pr(Windy given not Sunny) = Pr(Windy and not Sunny)/Pr(not Sunny) = 0.2/(1 - 0.3) = 0.2/0.7 which rounds to D 29%


What is the definition of or in a probability?

My answer for probability Probability is the chance that something will happen - how likely it is that some event will happen. Sometimes you can measure a probability with a number: "10% chance of rain", or you can use words such as impossible, unlikely, possible, even chance, likely and certain. Example: "It is unlikely to rain tomorrow".


If there is 20 percent chance of rain tomorrow will it rain?

Probably not


What is the Probability of snowing on Christmas eve?

probably a 93 percent chance.


If there is a 75 percent chance of rain on Monday and a 25 percent chance of rain on Tuesday what is the probability of rain on either Monday or Tuesday?

thirteen sixteenths.