AP Stats: Data, Sampling, GrAPhing
10 Questions
| Attempts: 86
Questions and Answers
- 1.ATM PIN is what kind of value?
- A.
Categorical
- B.
Quantitative
- 2.Points scored is what king of value?
- A.
Categorical
- B.
Ordinal
- C.
Interval
- D.
Ratio
- 3.To study television commericals, we randomy sample several television channels and sample every commercial in a four-hour period. This is an example of what kind of sampling?
- A.
Cluster
- B.
Systemaic
- C.
Convenience
- D.
Stratefied
- E.
Self selecting
- 4.To study attitudes on the school budget, we will survey everyone who attends back to school night. This is an example of what kind of sampling?
- A.
Self-selecting
- B.
Convenience
- C.
Systematic
- D.
Stratefied
- E.
Simple Random
- 5.To study their opinions on the candidtades for municipal office will ask people their opinons at the library. Describe the potential bias in the sampling scheme.
- 6.2000 people in a simple random sample were sent surveys on their eating habits; 317 return their survey. Describe the potential bias in this response rate.
- 7.What are the two conditions under which a sample scheme can be considered a simple random sample.
- 8.In a two-way frequency table, marginal distributiion refers to
- A.
Data values below a certain threshold
- B.
The first and last row in the table
- C.
The sums of the rows and columns
- D.
The labels of the rows and columns
- 9.To study car safety, we will collect data on car accidents from the first 10 body shops listed in the phone book. 1) Why is this not a simple random sample? 2) What kind of sample is it, and 3) What is the potential bias?
- 10.We would like to study the safety of automobiles by collecting data on the severity of injuries sustained in automobile accidents. What is the population for this study?
- A.
Automobiles
- B.
Accident victims
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