Samples and Studies

A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:

• Asking all the students in the hot lunch line.
• Asking 10 random students from each homeroom.
• Asking every other student who gets off a school bus.
• Asking all the 10th graders.

Tags

CCSS.6.SP.A.1

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Mrs. Wynn samples her class by selecting every third person on her class list. Which type of sampling method is this?

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Farmer Joe's apple tree farm is set up in 100 rows. He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm. This is _____________ sampling.

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

To avoid working late, the quality control manager inspects the last 10 items produced that day.

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Interview the first 30 students who enter the school in the morning.

• Simple random

• Systematic

• Convenience

• Cluster

• Stratified

Units of the population are grouped; one or more groups are selected at random. All units of that group are included in the sample.

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Identify the sampling method:

The population is divided into groups of similar individuals. Random samples are taken from each group and then combined to form the overall sample.

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Tom surveys 40 moviegoers by randomly choosing their names. What type of sampling method is this?

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified

Mrs. Wynn samples her class by dividing her class into boys and girls and then selecting 5 girls and 7 boys. This type of sampling is called?

• Simple Random

• Systematic

• Convenience

• Cluster

• Stratified