SOLUTION: The daily demand for petrol at a garage is normally distributed with a mean of 20000 litres and a standard deviation of 7200 litres .what is the probability that the demand in any

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Question 1021458: The daily demand for petrol at a garage is normally distributed with a mean of 20000 litres and a standard deviation of 7200 litres .what is the probability that the demand in any one day is greater than 25000 litres
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=(x-mean)/sd
z>(25000-20000)/7200
z>(5000/7200)=0.6944
probability is 0.2437