A sales promoter decides to visit 10 houses in a street and offer special discounts…
MATHEMATICS · Multi-part · AP · AP Statistics · Collecting Data · Collecting Data
Problem
A sales promoter decides to visit 10 houses in a street and offer special discounts on a new window treatment. The street has 100 houses numbered from 1 to 100. The sales promoter selects a random number between 1 and 10 inclusive and calls on the house with that street number. After this the promoter calls on every tenth house.
(1) What sampling technique is used by the sales promoter?
(2) Explain why every house in the street has an equal chance of being visited.
(3) Explain why this is not a simple random sample.