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If the probability that it will rain tomorrow is 0.30, the probability that it will not rain tomorrow is what?
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If the probability that it will rain tomorrow is 0.30, the probability that it will not rain tomorrow is what?

User Tegra Detra
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1 Answer

10 votes
Probability has to add to 1.
So 1 = P(will rain) + P(won’t rain)
1 = .30 + P(won’t rain)
1 - .30 = P(won’t rain)

P(won’t rain) = .70 or 70%

User Ziumin
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