Question

Identify each sample, and suggest a population from which it was selected. Then classify the sample as simple, stratified, or systematic. Explain your reasoning.

At a bridal shower, a sticker was placed on the bottom of three random plates. The guests who receive the starred plates will win a prize.

Short answer

The sample is guests who received the starred plates.

The population is all guests.

The sample is simple random samples.

Step-by-step solution

Step 1. Identify each sample, and suggest a population from which it was selected.

A sample is some portion of a larger group called the population.

Therefore, the sample is guests who received the starred plates and the population is all guests.

Step 2. Classify the type of sample. 

Simple random sample is a sample that is equally likely to be chosen as any other sample from the population.

As, a group of three guests are equally likely to receive the starred plates as any other group of three guests. Therefore, the sample is simple random samples.