A Researcher Is Studying the Nutritional Consumption of High School

Multiple Choice

A researcher is studying the nutritional consumption of high school students during the lunch hour. He has a sample of students where each and every high school student has an equal and independent chance of being included in the sample. This is an example of:

A) Simple random sampling
B) Systematic random sampling
C) Stratified random sampling
D) Stratified random sampling with differential probabilities