Problem
A bottling company offers three kinds of delivery service - instant, same day and within five days. The profit per delivery varies according to the kind of delivery. The profit for an instant delivery is less than the other kinds because the driver has to go directly to a grocery store with a small load and return to the bottling plant. To find out what effect each type of delivery has on the profit picture, the company has made the following tabulation based on deliveries for the previous quarter.
|
Type of Delivery
|
Number of Deliveries During the Quarter
|
Profit per Delivery
|
|
Instant
|
100
|
$70
|
|
Same day
|
60
|
100
|
|
Within five days
|
40
|
160
|
What is the weighted mean profit per delivery?