Unit 12 Practice Test - Data Analysis & Statistics

1) The table shows the number of hours Ladena spent sleeping each night for 12 nights. What is the mean of the data?  Round to the nearest tenth.

2) The table shows the number of hours Ladena spent sleeping each night for 12 nights. What is the mode of the data?

3) The table shows the number of hours Ladena spent sleeping each night for 12 nights. Which measure of center best represents the data?

• mean

• median

• mode

• range

4)  What is the median of the data?

5)  What is the mode of the data?

6)  What is the range of the data?

7)  What is the mean of the data? (Do not round your answer.)

8)  What is the mean without the outlier?  Round to the nearest tenth if necessary.

9)  What is the first quartile?

10)  What is the third quartile?