20 MCQs ins Statistics ...

1. A study in which researchers measure or observe characteristics of the sample members
Representative sample
Observational study
Double-blind study
Unimodal
 

2. Any problem in study design that tends to favor certain results
Statistics
Sample
Bias
Representative sample
Population parameter
 

3. Science of collecting, organizing, and interpreting data
Statistics
Population
Sample
Population parameter
 

4. The most common value in a distribution
Qualitative data
Quantitative data
Mean
Mode
Median
 

5. A single number commonly used to describe the variation in a data distribution
Statistics
Population parameter
Mean
Mode
Median
Standard deviation
 

6. Data consisting of values that describe the non-numerical categories
Statistics
Population
Representative sample
Qualitative data
Quantitative data
 

7. Subset of the population from which data is obtained
Sample
Population
Qualitative data
Quantitative data
 

8. The sum of all values divided by the total number of values
Statistics
Mode
Median
Mean
Standard deviation
 

9. Neither the participants nor the experimenters know who is in the treatment group or control group
Statistics
Sample
Bias
Representative sample
Double-blind study
 

10. The complete set of people or things being studied
Statistics
Population
Sample
Population parameter
 

11. For any data category, the fraction or percentage of the total frequency that falls in that category
Population
Sample
Relative frequency
Standard deviation
 

12. The data that describe or summarize information
Statistics
Sample
Bias
Representative sample
 

13. Specific characteristics of the population
Statistics
Population
Sample
Population parameter
 

14. Quantitative data that can take on only particular values and not other values in between
Statistics
Discrete variable
Continuous variable
Qualitative data
 

15. A sample in which the relevant characteristics of the members are generally the same as the characteristics of the population
Statistics
Population
Sample
Representative sample
 

16. A study in which researchers apply a treatment and then observe its effects on the subjects
Experimental study
Observational study
Double-blind study
Discrete variable
Continuous variable
 

17. The middle value in a sorted data set
Mean
Mode
Median
Unimodal
Standard deviation
 

18. Data consisting of values representing counts or measurements
Qualitative data
Quantitative data
Unimodal
Standard deviation
 

19. Quantitative data that can take on any value in a given interval
Population parameter
Bias
Discrete variable
Continuous variable
 

20. Single-peaked distribution
Population parameter
Bias
Unimodal
Standard deviation