SOLUTION: Toby’s trucking company determined that on annual basis, the distance travelled per truck is normally distributed with mean of 80 470 kilometres and a standard deviation of 19 310
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Question 778010: Toby’s trucking company determined that on annual basis, the distance travelled per truck is normally distributed with mean of 80 470 kilometres and a standard deviation of 19 310 kilometres.
3.1 What proportion of trucks can be expected to travel between 54 720 and 80 470 kilometres?
3.2 What is the probability that selected will travel 54 720 and 61 160 kilometres?
3.3 How many of 1 000 trucks are expected to travel between 80 470 and 96 560 kilometres?
3.4 If 29.46% of the trucks travelled more than y kilometres determine y.
3.5 What is the probability that a selected truck will travel less than 54 720 kilometres?
3.6 What is the probability that a selected truck will travel more than 96 560 kilometres?
