Suppose the transit system of a large city has a lost and found department that keeps detailed records, including the estimated value in dollars of each lost item. each year the department publishes a report with a histogram showing the proportion of items lost in various price ranges.
the bar on the histogram with endpoints 100 to 200 has a height of 0.11. what does this mean?
(a) of the lost items, 11% cost $150.
(b) between 100 and 200 items had an estimated value of 11% of the total cost of all items.
(c) of the lost items, 11% cost between $100 and $200.
(d) it is impossible to answer the question because it does not say what variable is displayed on the horizontal axis.
(e) of the lost items, 11% had an average cost of $150.

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i. e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)