Read the Math Notes box in this lesson. For each question, describe the population of interest. Then state whether a census is practical or whether it makes more sense to take a sample. Justify your response.
What is the average time it takes U.S. employees to commute to work?
Population: U.S. employees. The population is too large to conveniently measure so sampling should be used.
What is the average bedtime for students in your math class?
Population: students in the class. A census can be taken.
How much Vitamin A is in an average carrot?
What is the public approval rating of the Governor?
How much weight can an elevator cable support?
What are your friends’ favorite movies?