If there is a 50% chance that it will rain today and a 50% chance that it will rain tomorrow, what is the probability that it ra
ins at least one of the days?
1 answer:
Answer:
0.75
Step-by-step explanation:
Given that there is a 50% chance that it will rain today and a 50% chance that it will rain tomorrow
We find that these two events are independent
A = rains today and B = rains tomorrow
A and B are independent
So we have
P(AB) =P(A)P(B)
the probability that it rains at least one of the days
= P(A or B) =P(A)+P(B)-P(AB)
=0.5+0.5-0.5(0.5)
=0.75
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