Random Sampling Methods

A teacher puts students’ names in a hat and chooses without looking to get a sample of 33 students. What kind of sampling technique is used?

• Simple Random Sampling

• Cluster Sampling

• Stratified Sampling

• Systematic sampling

A politician asks his neighbors their opinions about a controversial issue. What kind of sampling technique is used?

• Simple random sampling

• Cluster sampling

• Convenience Sampling

• Stratified sampling

A school chooses 3 randomly selected athletes from each of its sports teams to participate in a survey about athletics at the school. What kind of sampling technique is used?

• Simple random sampling

• Cluster Sampling

• Stratified Sampling

• Systematic Sampling

Willy wants to find what percent of students at his school drink milk after they finish their cereal. He selects every tenth person who enters the school. What kind of sampling technique is used?

• Simple random sampling

• Cluster sampling

• Stratified sampling

• Systematic sampling

Willy wants to find what percent of students at his school drink milk after they finish their cereal. He randomly selects 10 students from each grade level (freshmen, sophomore, and junior, senior). What type of sampling is this?

• Simple random sampling

• Cluster Sampling

• Stratified Sampling

• Systematic sampling

Willy wants to find what percent of students at his school drink milk after they finish their cereal. He randomly selects 50 student names from a hat. What type of sampling is this?

• Simple random sampling

• Cluster sampling

• Stratified sampoling

• Convenience sampling

Willy wants to find what percent of students at his school drink milk after they finish their cereal. He randomly selects 3 classrooms and surveys every student in those classrooms. What type of sampling is this?

• Simple Random sampling

• Cluster sampling

• Stratified Sampling

• Systematic sampling

A hockey card collector opens a drawer of sorted cards and, after selecting a random starting point, takes out every fifth card. What kind of sampling technique is used?

• Simple random sampling

• Cluster sampling

• Stratified sampling

• Systematic Sampling

The principal randomly selects four classes and surveys each student in those classes. What kind of sampling technique is used?

• Simple random sampling

• Cluster sampling

• Stratified sampling

• Systematic Sampling

Group the businesses according to type: medical, shipping, retail, manufacturing, financial, construction, restaurant, hotel, tourism, other. Then select a random sample of 10 businesses from each business type. What kind of sampling techniques is this?

• Systematic sampling

• Cluster Sampling

• Stratified sampling

• Convenience sampling