Messenger Service ​ Three Messenger Services Deliver to a Small Town in Small

question 227

Essay

Messenger Service ​
Three messenger services deliver to a small town in Oregon.Service A has 60% of all the scheduled deliveries,service B has 30%,and service C has the remaining 10%.Their on-time rates are 80%,60%,and 40% respectively.Define event O as a service delivers a package on time. ​ ​
-{Messenger Service Narrative} If a package was delivered 40 minutes late,what is the probability that it was service B?

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Definitions:

Interest

The return on a debt investment.

Breakeven Volume

The number of units a company must sell to cover its fixed and variable costs, with no profit and no loss.

Units

Units commonly refer to a measure of quantity or to the basic amounts of inventory, production, or other quantifiable elements in business operations.

Return On Capital Employed (ROCE)

A financial ratio that measures a company's profitability and efficiency in using its capital; calculated as EBIT (Earnings Before Interest and Taxes) divided by capital employed.