Question

A supermarket wants to find the percent of shoppers who use coupons. A manager interviews every shopper entering the greeting dard aisle. Identify the sampling method.convience samplesystematic sampleself-selected samplerandom sample

Answer 1

To determine the percet of shoppers that use coupons, the manager interviews every shopper thay enters the greeting aisle and records wether they use or not coupons.

Since he does not take any measures, nor divide the shopers into groups or, for example, interviews one every k number of shoppers, the sampling method he used is the most simple and common one, named

"Simple random sample" or "random sample"