a shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units

Answer 1

There are 40-3=37 non-defective units.
Number of ways
= 37 choose 5
= (37,5)
= 37!/(5!(37-5)!)

Answer 2

Bottled Water Consumption (Problem 31, page 383)

Answer 3

Department of Agriculture claims that the mean consumption of coffee by the person in the United States is ... A random sample of 120 people in the United States shows that the mean coffee consumption is 23.5 gallons per year with a standard .