From considerable past experience, a student knows that the time elapsed between placement of a pizzaorder...
From considerable past experience, a student knows that the time elapsed between placement of a pizzaorder and delivery of the pizza is uniformly distributed between 10 and 40 minutes. What proportion of pizzadeliveries take between 20 and 39 minutes?
Homework Answers
Ans. The difference between 40 and 10 is 30 , which is 1 ÷ 30 of each minute. Difference between 20 and 39 is 19 , this means that the proportion of pizza deliveries between 20 and 39 minutes would be 19 ÷ 30 of earlier time frame. This is equal to 0.63.
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