Statistics Quiz 5 (30 MCQs)

Quiz Instructions

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1. Mark bowled 7 games last weekend. His scores are:155, 165, 138, 172, 127, 193, 142. What is the range of Mark's scores?
2. What is the meaning of statistics in plural sense?
3. Subjects were taken from a population with an equal numberof males and females.
4. A frequency distribution is a tabular summary of data showing the
5. The statistic is a number describing the:
6. What is the mean of 3, 7, 9, 8, and 13?
7. Find the area under the standard normal curve where z < 2.42 .
8. The term 'Statistics' was first used by
9. It refers to the process of making conclusions based on the presented data.
10. What is the branch of statistics that involves organizing, displaying and describing data?
11. Identify the Sample:A restaurant wants to know if customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.
12. Political webpages often allow readers to rate whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:
13. Which type of numerical data uses only whole numbers?
14. A method of collecting information about a certain group of people by asking a question or set of questions
15. The indices of ( value of) scatteredness or variability
16. The speed of the car was 45 mph.
17. What is the mean?
18. Ethnic group categories of people in a neighborhood.
19. Complete the definition:A ..... is a subset of a population
20. Who has defined economics as "The study of man in the ordinary business of life" ?
21. If you want to perform a quality study, you need to use the following data:
22. Ervin bowled 7 games last weekend. His scores are:155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?
23. 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?
24. What does the standard deviation tell us about the data set?
25. According to ....., "Economics is the science of wealth"
26. A range of values where the true value will most likely fall
27. How does statistics help in economic planning
28. 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?
29. 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
30. Sum of data points divided by the number of data points.