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Preview questions
1. What is the first step in calculating the mean of a data set?
Arrange the data in ascending order · Add all the values together · Count the number of values · Divide the sum by the number of values
2. Which measure of central tendency is most affected by extreme values?
Mean · Median · Mode · Range
3. What is the median of the data set: 3, 5, 7, 9, 11?
5 · 7 · 9 · 8
4. In a frequency distribution, what does the term 'frequency' refer to?
The total number of values · The number of times a value occurs · The average of the values · The highest value in the set
5. What is the mode of the data set: 2, 3, 4, 4, 5, 5, 5?
2 · 3 · 4 · 5
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