Statistics Vocabulary

Which of the following is not a common method of conducting a survey?

• telephone survey

• mailed questionnaire

• personal interview

• taking a picture

In which type of sampling, are the subject selected by using every Kth number after the subject is selected randomly?

• Random Sampling

• Systematic Sampling

• Stratified Sampling

• Cluster Sampling

• Convenience sampling

In which type of sampling, are the subjects selected by dividing the population to groups and individuals within the groups are randomly selected?

• Random Sampling

• Systematic Sampling

• Stratified Sampling

• Cluster Sampling

• Convenience sampling

When the researcher manipulates on of the variables and tries to determine how the manipulation influences other variables...

• Observation Study

• Experimental Study

• Random Sample

• Biased Study

Political webpages often allow readers to rate whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:

• Voluntary Response
• Convenience Sampling
• Simple Random Sampling
• Systematic Random Sampling

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

• Simple Random Sample
• Stratified Random Sample
• Voluntary Response
• Systematic Random Sampling

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the first five who raise their hands.

• Systematic
• Convenience
• Voluntary Response
• Simple Random

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.

• Stratified.

• Systematic

• Cluster

• Biased.

Define bias.

• tolerance
• two sided
• in favor of one side
• hate