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# Complementary Counting Problem!

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The probability of snow for each of the next three days is 2/3. What is the probability that it will snow at least once during those three days? Express your answer as a common fraction. Thanks for the help guys!

Mar 20, 2019
edited by EvanWei123  Mar 20, 2019

### 2+0 Answers

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By using Complementary Counting, you can find the probability that no days snow, and subtract that from $$1$$. The probability that no day snows is $$\frac{1}{3}*\frac{1}{3}*\frac{1}{3}=\frac{1}{27}$$, so the probability of it snowing at least one day is $$1 - \frac{1}{27}= \frac{26}{27}$$.

- Daisy

Mar 20, 2019
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Thank You Daisy!

Mar 23, 2019