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

• cluster sample
• simple random
• stratified
• proportional
• #### 2.  Identify the sampling design: Mr. Rhoades puts all of his students' names in a hat and randomly selects one without looking.

• cluster
• volunteer
• systematic
• simple random
• #### 3.  Leslie wants to find out what show students watch the most. She surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative?

• yes
• no
• Mr. Shinn, I have no idea!
• All of above

• cluster
• unbiased
• stratified
• convenience
• #### 5.  The conductor has control over the environment in this setting

• experiment
• observational study
• population
• sample
• #### 6.  Identify the sampling design: Student government randomly samples 25 students of each of the four classes.

• stratified
• volunteer
• systematic
• simple random
• #### 7.  This sample consists of units of the population that are easily accessible.

• Cluster
• Convenience
• Volunteer
• Observational

• mandatory
• census
• volunteer
• unbiased

• proportional
• probable
• stratified
• systematic

• stratified
• cluster
• judgment
• experimental
• #### 11.  Identify the sampling design: A campaign intern makes phone calls to ask questions to registered voters regarding their intention to vote on election day.

• cluster
• volunteer
• systematic
• simple random

• yes
• no
• #### 13.  The conductor has no input or control over the environment in this situation

• census
• observational study
• experiment
• judgment
• #### 14.  Identify the sampling design: SCPS wants to survey its employees. They pick 4 schools from the county and survey every single employee in each of the 4 buildings.

• cluster
• volunteer
• systematic
• simple random

• cluster
• unbiased
• stratified
• convenience
• #### 16.  Cluster, stratified, simple random, systematic, and proportional are all types of

• convenience samples
• biased samples
• haphazard samples
• unbiased samples
• #### 17.  This method produces values that systematically differ from the population being sampled.

• valid sample
• variable sample
• biased sample
• cluster sample

• convenience
• census
• cluster
• simple
• #### 19.  Every possible group of units of the required size has the same chance of being the selected sample as any other sample of the same size.

• Simple Random
• Thoughtful
• Typical
• Proportional
• #### 20.  Identify the sampling design: The LFCC registrar wants to investigate attitudes of their graduates. The registrar randomly selects 100 names from each of the four past graduating classes.

• cluster
• volunteer
• stratified
• simple random
• #### 21.  Identify the sampling design: School admin conducted a survey on post-graduation plans. Students of senior class 2018 were listed in order by class rank. The school selected a random number between 1 and 15, obtaining a number 11. Then, they selected every 11th student for the survey.

• cluster
• volunteer
• systematic
• simple random
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