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Measures Of Center And Spread Quiz 2 (20 MCQs)

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1. Which of the following is NOT a measure of spread?
2. What is the median for this set of data?:26, 21, 22, 27, 22, 25, 39, 35
3. Which of these measures of central tendency is distorted by extreme values?
4. How do you find the Interquartile Range or IQR?
5. The _____ is the midpoint of the data.
6. When a distribution is skewed, which measures of center and spread are most reliable?
7. For the data given here what is the range:15, 17, 19, 15, 13, 14, 10, 21, 18, 19, 19
8. This is a list of the number of text messages 5 friends sent last week:13, 60, 61, 63, 64. The most approximate measure of center for the data is the-
9. What is the median of the data set below?45, 57, 41, 67, 33, 43
10. Taylor recorded the running times for her track team. She noticed that a few runners were much faster than the others, and no recorded time was repeated, in the 100-meter dash. The track coach asked Taylor to determine the best measure of center. Which should she use?
11. , 31, 37, 46, 29, 38What is the Q3 of the data?
12. Which of these is the difference between the highest and lowest values in a data set?
13. What measure of center was most affected by the outlier?
14. The cost of five homes in a certain area is given.$ 147, 000$ 155, 000$ 175, 000$ 145, 000$ 1, 225, 000Which measure of central tendency should be used?
15. The numbers of runs scored by a softball team in 20 games are given. 3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7What is the Interquartile Range.
16. What is the median of the data set below?42, 51, 32, 46, 50, 55
17. The time in minutes for Sam's phone calls this week is listed below(9, 15, 5, 7, 9, 12, 11, 4)Which statement is true about the duration of his calls?
18. Use the 1.5 IQR rule to determine if there are any outliers for the following numbers:84, 88, 72, 74, 98, 16, 94
19. The scores on a statistics exam had a mean of 81 and a standard deviation of 9. One student was absent on the test day, and his score wasn't included in the calculation. If his score of 84 is added to the distribution of scores, what would happen to the mean and standard deviation?
20. The following data represents the number of students in 6th grade math classes. Which measure of center best describes the data? 50, 25, 22, 21, 17
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