Clatsop Retailing Inc.owns four stores in the Plainfield, New Jersey, area.The company plans to choose a sample of two of these stores to test a new store layout.If we identify the stores as Store A, Store B, Store C and Store D, list all six equally likely samples of size 2 that could be selected if Clatsop uses simple random sampling without replacement.
A)AB, BA, AD, BC, BD, CC
B)AB, BC, AD, CC, BD, CD
C)AB, AC, AD, BC, BD, CD
D)AB, AC, AD, BB, BD, DB
E)AB, CC, DD, BB, BD, DB

Question

Quizplus · Accepted Answer

When using simple random sampling without replacement to select two stores from four (A, B, C, D), each pair must be unique and order does not matter, resulting in the combinations AB, AC, AD, BC, BD, and CD.