Vocabulary

2. categorizing or describing attributes of a population
5. wording of the questions influences the responses
6. data that is collected and not yet organized
7. takes a fixed set of possible values with gaps between them
8. take any value in an interval on the number line
9. a portion of the population
12. people refuse to participate in the study
16. a number that is a property of the population
17. using results that are readily available
18. a number that represents a property of the sample
20. result of counting or measuring attributes of a population
21. using chance to select individuals
22. Gathering information about an entire population
24. methods for drawing conclusions from data
26. variable occurs when the response we see in an experiment is a least partially attributable to uncontrolled variables
28. data by classifying data into classes
29. sampling that occurs when the researchers have an interest in the outcome
30. sample is not representative of the population

1. the responder fears giving an honest answer
3. sampling that often occurs when the sample are volunteers
4. organizing and summarizing data
7. actual values of the variable
10. collection of objects under study
11. characteristic of interest
13. randomly select a starting point and take every nth piece of data
14. study where the effects of a treatment are measured
15. study based on observations or measurements
16. study randomness
19. variable occurs when an apparent association between two variables is really just common response to a third unseen variable
23. the responder gives inaccurate responses
25. divide the population into group and then randomly select some of the groups
27. is a “dummy” treatment given to the control group