Q21 of 50 Page 15

The record of a weather station shows that out of the past 250 consecutive days, its weather forecast was correct 175 times. What is the probability that on a given day

(i) Was it correct?


(ii) Was it incorrect?

Explanation:


Total number of days the forecast was made = 250


Number of days the forecast was correct = 175


Number of days the forecast was incorrect = 250 – 175 = 75


(i) The probability that the forecast was correct


P(correct)


(ii) The probability that the forecast was incorrect


P(incorrect)


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