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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

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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

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

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

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

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

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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

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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

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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

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Chapter 4 Statistics. 4.1 – What is Statistics? Definition 4.1.1 Data are observed values of random variables. The field of statistics is a collection.

Chapter 4 Statistics. 4.1 – What is Statistics? Definition 4.1.1 Data are observed values of random variables. The field of statistics is a collection.

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