Lauren checks the weather forecast and sees that there is a 51% chance of rain t

Question

Lauren checks the weather forecast and sees that there is a 51% chance of rain today. What is the probability that it will not rain today, as a percentage? Enter your answer a number, like this: 42 In an experiment the probability of event A occurring is P (A) = 5/7. What is P (A^c)? Enter your answer as a fraction, using the/symbol, like this: 1/2 Elijah made 8 of the last 12 free throws he attempted at basketball practice. What is the probability that he will make the next free throw he attempts?

Explanation / Answer

18.

there is only two options: either it will rain or it will not rain

given that

P(R) = 51% = 0.51

So,

P(Rc) = probability that it will not rain = 1 - P(A)

P(Rc) = 1 - 0.51 = 0.49 = 49%

19.

relation is given by:

P(Ac) = 1 - P(A)

Using given value

P(Ac) = 1 - 5/7

P(Ac) = (7 - 5)/7

P(Ac) = 2/7

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