The weather forecaster in Treeville incorrectly predicts the weather 15% of the time. What is the probability that the forecaster correctly forecasts the weather the next three days in a row?
A
0.414
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B
0.514
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C
0.564
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D
0.614
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Solution
The correct option is C0.614 The probability that the forecaster correctly forecasts the weather is 1−0.15=0.85
The probability that the forecaster correctly forecasts the weather the next three days is equal to 0.85×0.85×0.85=0.614