4. How do we define range?
A. The difference between the highest and the lowest values in a set of data.
B. The sum of the absolute values of the deviations.
C. The ratio of the summation of the squared deviations and the number of items.
D. The sum of the item values divided by the number of items.
5. What is average deviation?
A. The difference between the highest and the lowest values in a set of data.
B. The sum of the absolute values of the deviations.
C. The ratio of the summation of the squared deviations and the number of items.
D. The sum of the item values divided by the number of items.
6. What is Variance?
A. The difference between the highest and the lowest values in a set of data.
B. The sum of the absolute values of the deviations.
C. The ratio of the summation of the squared deviations and the number of items.
D. The sum of the item values divided by the number of items.
For items 7-9. Use the set of numbers 1, 2, 3, 4, and 5.
7. What is the range?
A. 5
B.4
C.3
D.2
8. What is the highest number?
A. 2
B. 3
C.4
D. 5
9. What is the lowest number?
A. 4
B. 3
C. 2
D.1
10. What is the mean of the given data 2, 4, 6, 8, 10, 12, 14, 16, and 18?
A. 8
B. 10
C. 12
D. 14
11. What is the median in the set: 2, 4, 6, 8, 10, 12, 14, 16, and 18?
A. 8
B. 10
C. 12
D. 14​