Question

The local weather forecast has been accurate for 23 of the past 40 days. Based on this fact, what is the relative frequency probability that the forecast for tomorrow will be accurate?

Answer 1

The relative frequency probability that an accurate forecast will be made the next day is ratio of the number of correct predictions made to the total number of predictions is 0.575

The total number of predictions made = 40

The number of correct predictions = 23

The relative frequency probability is given by ;

• Number of correct predictions ÷ total number of predictions made

• (23 ÷ 40) = 0.575

Therefore, the relative frequency probability that an accurate forecast will be made tomorrow is 0.575

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