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Measures Of Variability Quiz 3 (21 MCQs)

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1. Find the Standard Deviation\{ 12, 15, 16, 12, \}
2. Which MAD values represent the least variability in a data set?
3. You sent the same email to 10 of your friends. The number of hours it took them to respond was:1, 1, 1, 2, 2, 3, 4, 5, 5, and 25. What are the mean, median and mode of this date?
4. What is the definition of the mean?
5. The data set below represents the different costs of a game at an electronic store.$ 32, $ 47, $ 121, $ 96, $ 49, $ 81, $ 56What is the MINIMUM price?
6. It's the middle number in a set of data.
7. Before you can begin calculating the variance, you must first:
8. Which IQR represents the largest variability in a data set?
9. All of the data sets below have the same mean.Set 1:SD=3.1Set 2:SD=4.9Set 3:SD=1.7Set 4:SD=3.2Which set of data probably has the points CLOSEST to the mean?
10. It's the number that occurs the most times in a set of data.
11. Find the mode:4, 5, 4, 3, 5, 1, 6
12. Find the mean of the following numbers 40, 38, 46, 38, 51 and 57.
13. What is the first quartile of the data set:1, 8, 25, 30, 50, 72
14. It gives equal weight to the deviation of every score in the distribution.
15. The number of goals scored by seven forwards in one soccer season were 8, 6, 4, 8, 3, 1, and 5. Find the mean number of goals scored by the seven forward
16. The _____ is a measure of variability that splits the data into four equal sized quartiles.
17. The difference between the highest and the lowest score is _____
18. Which is the best measure of center best describes the data set 1, 1, 1, 2, 2, 3, 4, 5, 5, and 25?
19. Variability can also be described as how much the data _____ from the center.
20. Once you've calculated the mean, and listed the values in a table, what is the next step to calculating the variance?
21. The data set below represents the different costs of a camera at an electronic store.$ 32, $ 47, $ 121, $ 96, $ 49, $ 81, $ 56What is the IQR of the data?
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