Question
The probability that it will rain tomorrow is $0.85.$ What is the probability that it will not rain tomorrow$?$
✓
Answer
Let $A$ be the event of raining tomorrow. The probability that it will rain tomorrow, $P(A),$ is $0.85.$ Since the event of raining tomorrow and not raining tomorrow are complementary to each other, the probability of not raining. $\text{P}(\bar{\text{A}}) = 1 − \text{P(A)} = 1 − 0.85 = 0.15$
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