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Across 6. The branch of statistics that draws conclusions about a population from sample data. 9. A measurement of a variable in which the numbers indicating a variable's values represent fixed measuring units and an absolute zero point 10. A research method that requires use of a treatment and then observes its effects on the subjects. 14. Choosing individuals who are easiest to reach 15. A sample that every possible sample of the same size has the same chance of being selected. 16. Information that describes qualities or characteristics. 17. A subset of the population 18. A count or measure of part of a population. 19. A measurement of a variable in which the numbers indicating a variable's values represent fixed measurement units but have no absolute, or fixed, zero point 20. Characteristic of a sample 21. Classifies data into categories that can be ranked; however, precise differences between the ranks do not exist 22. The collection of all outcomes, responses, measurements, or counts that are of interest

Down 1. A characteristic of a population 2. Facts and statistics collected together for reference or analysis 3. The branch of statistics that involves the organization, summarization, and display of data 4. The science of collecting, organizing, analyzing, and interpreting data to make decisions. 5. A mathematical or physical model to reproduce conditions of a situation or process. 7. Divide the population into at least two sub-populations that share the same characteristic, and then draw a sample from each group. 8. Every nth member of the population is selected 9. A sample that fairly represents a population because each member has an equal chance of inclusion. 11. Data that consists of names, labels, or categories 12. Numerical data 13. Divide the population into sections and then randomly select a few of those sections, then choose all the members of those sections. 14. The collection of data from every member of the population 17. A method of data collection that has participants answer a series of questions.