Mod. 19.4 Day 2 - Sampling Methods

Multiple Choice

Which of the following best describes a biased sampling method?

• A method that gives every member of the population an equal chance of being selected

• A method that only selects individuals from a specific group

• A method that uses random selection

• A method that includes the entire population

Multiple Choice

Which of the following best describes the main difference between a census and a sample?

• A census surveys all members of a population, while a sample surveys only some members.

• A census is always less expensive than a sample.

• A sample always gives more accurate results than a census.

• A sample surveys all members of a population, while a census surveys only some members.

Multiple Select

Which of the following are advantages of using a sample instead of a census?

• It is more efficient.

• It requires fewer resources.

• It always avoids bias.

• It can be representative if chosen correctly.

Multiple Choice

Which sampling method involves dividing the population into groups and randomly selecting individuals from each group?

• Cluster sampling

• Stratified sampling

• Systematic sampling

• Convenience sampling

Multiple Choice

The school principal wants to survey 10% of the 9th-grade students (total of 300) about their experience transitioning to high school. They obtain an alphabetical list of all 9th graders and select every 3rd student on the list (starting with a randomly chosen student within the first three).

• Stratified

• Self-Selected

• Simple Random

• Systematic

• Convenience

Multiple Choice

The school principal wants to survey 10% of the 9th-grade students (total of 300) about their experience transitioning to high school. They obtain an alphabetical list of all 9th graders and select every 3rd student on the list (starting with a randomly chosen student within the first three).

• Representative

• Biased

Multiple Choice

A researcher wants to study the study habits of high school students in the district. There are 10 high schools in the district. The researcher randomly selects 2 of these high schools and surveys all the students in those two schools.

• Stratified

• Cluster

• Simple Random

• Systematic

• Convenience

Multiple Choice

A researcher wants to study the study habits of high school students in the district. There are 10 high schools in the district. The researcher randomly selects 2 of these high schools and surveys all the students in those two schools.

• Representative

• Biased

Multiple Choice

A student journalist needs to quickly get some opinions on the upcoming school dance. During lunch, they interview the first 10 students who walk by their table in the cafeteria.

• Stratified

• Cluster

• Simple Random

• Systematic

• Convenience

Multiple Choice

A student journalist needs to quickly get some opinions on the upcoming school dance. During lunch, they interview the first 10 students who walk by their table in the cafeteria.

• Representative

• Biased

Multiple Choice

The student council wants to understand the general opinion of the entire student body (all 1200 students) about adding a new snack option in the cafeteria. They obtain a list of all students and use a random number generator to select 50 students to survey.

• Stratified

• Cluster

• Simple Random

• Systematic

• Convenience

Multiple Choice

The student council wants to understand the general opinion of the entire student body (all 1200 students) about adding a new snack option in the cafeteria. They obtain a list of all students and use a random number generator to select 50 students to survey.

• Representative

• Biased

Multiple Choice

To gather feedback on the school's new website design, the tech club places a link on the homepage asking students to click and complete a survey if they have opinions about it. 75 students respond.

• Self-Selected

• Cluster

• Simple Random

• Systematic

• Convenience

Multiple Choice

To gather feedback on the school's new website design, the tech club places a link on the homepage asking students to click and complete a survey if they have opinions about it. 75 students respond.

• Representative

• Biased

Multiple Choice

To understand student opinions on the school's extracurricular activities, the student council decides to ensure representation from each grade level. The school has roughly 300 students in each grade (9th, 10th, 11th, and 12th). They randomly select 20 students from each grade level to survey, resulting in a total sample of 80 students.

• Self-Selected

• Cluster

• Stratified

• Systematic

• Convenience

Multiple Choice

To understand student opinions on the school's extracurricular activities, the student council decides to ensure representation from each grade level. The school has roughly 300 students in each grade (9th, 10th, 11th, and 12th). They randomly select 20 students from each grade level to survey, resulting in a total sample of 80 students.

• Representative

• Biased