Probability
If the probability that it will rain on any certain day in City X was 40 %, then what is the probability that it rains once in two days?
- 0.24
- 0.36
- 0.48
- 0.54
- 0.60
I solved it by saying that the probability of raining on 1st day is 0.4
Probability that it did not rain on the first day but rained on second is 0.6*0.4
Probability rains on one of the days is 0.4+0.24 = 0.64
not an answer choice. Why is A correct?
Got it. Rain is an independent event so P(Rain on 2 days ) = P(A)*P(B) but then shouldn’t it be P(R,NR) = 0.4*0.6*2
Yes it has to be 0.48.
Answer has to be C here.
