You want to collect data on a random sample of products created on a production line. The company has two types of products (A and B). For each of the scenarios described below, please name the sampling
method.
A. You randomly select the serial numbers of 50 products and collect information on each item selected.
B. You randomly select 20 products of type A and 20 products of type B.
c. You select every 20th product as they come off the production line.