Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster. To determine her mood , Carolyn divides up her day into three parts: morning, afternoon, and evening. She then measures her mood at 3 randomly selected times during each part of the day. What type of sampling is used?

A. Systematic

B. Simple random

C. Convenience

D. Stratified

E. Cluster

B.

Explanation:

Based on the sampling methods provided in regards to the question it can be said that the method being used is called Simple Random. This refers to dividing the population into different group which are then chosen at random, giving each group an equal chance of getting chosen. Which is exactly what is going on in this scenario, as the day is divided into three parts and her mood is measured randomly during each part of the day.