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Measures Of Variability Quiz 1 (25 MCQs)

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1. For which group of data does the mean equal the mode?
2. Find the mean of the given data 8, 7, 5, 9, 6, 13
3. How do you find the range of a set of numbers?
4. What is the first thing you should do before finding the median or the mode?
5. What is the interquartile range of the data set:1, 8, 25, 30, 50, 72
6. Find the lower quartile (Q1) of the following set of scores 6, 7, 8, 9, 11, 13, 15
7. What does the variance represent?
8. It is a measure of variability that you get when you subtract the smallest number in a set of data from the largest number.
9. The range in temperature for the month of November in El Paso, Texas is 44 degrees. If the record high temperature is 92 degrees, then what is the record low temperature.
10. What does the term measure of variation mean?
11. Find the median for the following prices;$ 12.50, $ 15.50, $ 15, $ 17.50, $ 11.50
12. The mathematical difference between the highest (maximum) value and lowest (minimum) value in a data set.
13. Find the range of the data set:24, 49, 47, 78, 66, 37, 49, 82
14. Find the Median of the following numbers:84, 88, 72, 74, 98, 16, 94
15. What is the Q1 for the following data? 52, 72, 96, 21, 58, 40, 75
16. The salaries of 5 public school teachers are given as follows:Php 30, 000, Php 24, 000, Php 22, 000, Php 23, 000, Php 28, 000.What is the range for the given set of ungrouped data above?
17. It measures the average deviation of the scores from arithmetic mean.
18. What is the IQR of this data set?37, 42, 48, 51, 52, 53, 54, 54, 55
19. IQR stands for _____
20. Which measure of variation is the difference between the maximum and minimum of the data?
21. Before you can begin calculating the standard deviation, you must first:
22. How do you calculate the standard deviation?
23. What is the mean of the data set:6, 35, 8, 20, 6, 16, 7?
24. Given a variance of 64, what is the standard deviation?
25. Here are the times (in minutes) that six students needed to finish a quiz:10, 14, 15, 15, 14, 10The Mean Absolute Deviation for this data is 2.A seventh student took 8 minutes to finish the quiz. We added his time to our data. What will happen to the MAD?
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