Understanding Data Representation

1. Given the data set: 2, 3, 3, 5, 5, 5, 6, 7, 8, 9, calculate the frequency of the number 5.

• 6

• 3

• 2

• 4

3. What is the range of the data set: 10, 15, 20, 25, 30?

• 20

• 30

• 25

• 15

4. In the class interval 10-20, what is the upper class limit?

• 25

• 20

• 15

• 10

5. In the class interval 10-20, what is the lower class limit?

• 5

• 15

• 25

• 10

11. From the data set: 4, 4, 5, 6, 6, 6, 7, calculate the frequency of the number 6.

• 2

• 5

• 3

• 4

12. Create tally marks for the data set: 1, 1, 2, 2, 3, 3, 3, 4.

• 1: ||, 2: ||, 3: |||, 4: |

• 1: |||, 2: |, 3: |||, 4: ||

• 1: ||, 2: |, 3: |, 4: |||

• 1: |, 2: |||, 3: ||, 4: |||

14. In the class interval 20-30, what is the upper class limit?

• 20

• 25

• 35

• 30

15. In the class interval 20-30, what is the lower class limit?

• 30

• 20

• 25

• 10

16. Calculate the frequency of the number 3 in the data set: 1, 2, 3, 3, 4, 5, 3, 6.

• 5

• 4

• 2

• 3

18. Determine the range of the following data set: 8, 12, 15, 18, 20.

• 12

• 5

• 25

• 10