The record of a weather station shows that out of the past 250 consecu

1.	The record of a weather station shows that out of the past 250 consecutive days, its weather forecasts were correct 175 times..(i) What is the probability that on a given day it was correct ?(ii) What is the probability that it was not correct on a given day ?
Answer» The total number of days for which the record is available = 250 (i) P(the forecast was correct on a given day) Number of days when the forecast was correct / Total number of days for which the record is available = 175/250=0.7 (ii) The number of days when the forecast was not correct = 250 - 175 = 75 So, P(the forecast was not correct on a given day)=75/250=0.3

The record of a weather station shows that out of the past 250 consecutive days, its weather forecasts were correct 175 times..(i) What is the probability that on a given day it was correct ?(ii) What is the probability that it was not correct on a given day ?

Answer»

The total number of days for which the record is available = 250

(i) P(the forecast was correct on a given day)

Number of days when the forecast was correct / Total number of days for which the record is available = 175/250=0.7

(ii) The number of days when the forecast was not correct = 250 - 175 = 75

So, P(the forecast was not correct on a given day)=75/250=0.3

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The record of a weather station shows that out of the past 250 consecutive days, its weather forecasts were correct 175 times..(i) What is the probability that on a given day it was correct ?(ii) What is the probability that it was not correct on a given day ?

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