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Statistics Quiz 6 (25 MCQs)

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1. The indices of ( value of) scatteredness or variability
2. The speed of the car was 45 mph.
3. Ethnic group categories of people in a neighborhood.
4. Complete the definition:A _____ is a subset of a population
5. Who has defined economics as "The study of man in the ordinary business of life" ?
6. If you want to perform a quality study, you need to use the following data:
7. Marcos wants to find out how many students at his school like to go to the movies. Which survey method is likely to produce a representative survey?
8. What does the standard deviation tell us about the data set?
9. According to _____, "Economics is the science of wealth"
10. A range of values where the true value will most likely fall
11. How does statistics help in economic planning
12. Study the data set shown. 15, 14, 19, 16, 22, 20, 17, 20, 29, 21, 18 Which statement is true about this set of data?
13. If the mean of five observations x, x + 2, x + 4, x + 6, x + 8 is 11, then the mean of first three observations is
14. Sum of data points divided by the number of data points.
15. The facts or numbers gathered in a survey is an example of?
16. It is a variable whose values depend on outcomes of a random phenomenon.
17. Solve to find the equivalent fraction.4/5 = x /15
18. A sample in which every member of the population has an equal chance of being selected.
19. Refers to drawing of conclusions or generalizations from the analysed data.
20. In statistics, a population consists of
21. Variables which can assume values that manifest the concept of attributes
22. A student measures the weight of every individual in his batch. This means that he will get _____
23. A company consists of four members. How many sample points are in the sample space when three officers:president, vice president, and secretary are to be chosen?
24. A sample should be
25. Square of standard deviation is called
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