Quiz 1

1. Quiz 1 • Types of data • Sampling techniques • Choose the best answer • There will be no “correction for guessing” so answer all questions even if you have to guess

2. 1. Which category of data are the frequencies of people who choose a particular type of treatment protocol? a) nominal b) ordinal c) interval d) ratio

3. 2. Which category of data are the race times of sprinters? a) nominal b) ordinal c) interval d) ratio

4. 3. Which category of data are uOttawa letter grades (i.e., F, E, D, D+, … A+)? a) nominal b) ordinal c) interval d) ratio

5. 4. Which number has the correct number of significant figures? a) 25.67 b) 2.1718 c) 3450 d) 5.0

6. 5. Which number has the correct number of significant figures? a) 1 234 567 b) 3.141 59 c) 0.023 d) 560

7. 6. A sample that was randomly sampled so that there are exactly ½ males and ½ females is a ___. a) random sample b) stratified sample c) systematic sample d) cluster sample e) convenience sample

8. 7. A news program randomly selects to interview people as they leave a courtroom. This is a ____. a) random sample b) stratified sample c) systematic sample d) cluster sample e) convenience sample

9. 8. Every hundredth person is selected from the uOttawa student directory. This is a _____. a) random sample b) stratified sample c) systematic sample d) cluster sample e) convenience sample