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Statistics Quiz 16 (25 MCQs)

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1. A teacher asks all her students five questions about their study habits.
2. A variable that quantifies an element of a population.
3. Calculate the interquartile range of the following data17, 18, 18, 19, 20, 21, 21, 23, 25
4. Facts, or a set of information or observation under study
5. A school principal wants to see which subject the 695 students in his school liked best. Which choice BEST represents a sample?
6. Which is the root of all economic problems?
7. The school librarian wants to determine how many students use the library on a regular basis. What type of sampling method would she use if she chose to select every 3rd student who enters the library on Tuesday.
8. The school librarian wants to determine how many students use the library on a regular basis. What type of sampling method would she use if she chose to use a random number generator to randomly select 50 students from the school's attendance roster.
9. Which of these is a statistical question?
10. Which of the following is an example of qualitative data
11. A poll was conducted in which 1000 adults were asked if they prefer bottled water or tap water, and 57% of them said they prefer bottled water. In this scenario, the 57% is a _____
12. _____ is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.
13. The best defense against bias in which every individual is given a fair chance of being selected
14. A Type I error is when:
15. In statistics, a sample:
16. The relative frequency of a class is computed by
17. Farmer Joe separates his apple tree farm into 10 regions. He counts the number of apples produced in just one of the regions and uses that estimate to predict the number of apples produced on the whole farm. This is _____ sampling.
18. The Statistics is concerned with:
19. What type of data will questions answerable by YES or NO generate?
20. It is a numerical description of a sample characteristic
21. The measure of closeness of the estimates to each other
22. What refers to any procedure done to select samples?
23. Seth said that 17 was the number that showed the difference between the lowest and highest numbers in a data set. Which term would define Seth's number?
24. In the data set below, what is the mean absolute deviation? 6, 5, 7, 2, 4, 8
25. What measure represents the value that repeats the most
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