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Statistics Quiz 4 (25 MCQs)

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1. Find the z-score for 62 given a mean of 30 and a standard deviation of 20.
2. A sample in which each individual or object in the entire population has an equal chance of being selected.
3. Coefficient of correlation will be always will always be
4. If a question is statistical what does it have
5. Which interval shows 68% of the data given a mean of 15 and a standard deviation of 3?
6. What is the mode of the following data set:1, 2, 2, 2, 5, 9
7. Statistics is defined in terms of statistical method in the _____
8. Marianne wanted to know students' opinion on the new schedule at school. So she randomly selected 2 students from each class during second period. This is a form of:
9. It consists of the collection, organization, summation, and presentation of data.
10. Variables can be classified as _____
11. Which of the following is an example of discrete data?
12. Identify the Population:Gwinnett County Public Schools randomly selected 230 teachers to find out which technology resource is the most effective. 30 teachers chose Safari Montage, 45 selected Learn Zillion, 100 chose Ed Puzzle, and 55 chose Kahoot. GCPS concluded that all teachers prefer Ed Puzzle.
13. A sample is _____
14. The distance between the greatest number and the least number in a set of data.
15. What is the branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data?
16. The root mean square deviation of observations from the arithmetic mean is _____
17. Which economic activity deals with use of goods and services for the satisfaction of human wants?
18. "The average Japanese woman lives to the age of 86." What is the population behind this statistic?
19. The science of collecting, describing, and interpreting data.
20. What would be the sample i n this example? Surveyors in a mall choose shoppers to ask about products they prefer.
21. A scientific body of knowledge which deals with the collection, organization, presentation, analysis and interpretation of data.
22. A gaming website wanted to find out which console its visitors owned. Which choice BEST represents a population?
23. Tom surveys 40 moviegoers by randomly choosing their names. What type of sampling method is this?
24. This is the lowest level of measurement.
25. Identify the outlier for the given data? 23, 34, 27, 7, 30, 26, 28, 31, 34
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