1. There are two sets of rainfall data for two different time periods in the same location. Period 1: 2.3, 2.1, 2.2, 2.2, 2.2, 2.1, 2.4, 2.5, 2.2, 2.0, 1.9, 1.9, 2.1, 2.2, 2.3
Period 2: 2.3, 2.1, 3.3, 1.5, 3.6, 1.6, 3.0, 1.1, 4.7, 2.1, 2.4, 1.9, 2.8, 0.5, 2.3

What can you say about the agreement in the data sets?

A. There is the same agreement in both sets of data.
B. There is more agreement in the data in period 2 than in period 1.
C. There is no agreement in the data for either period.
D. There is more agreement in the data in period 1 than in period 2.

2. Two sets of data both have a strong positive correlation. Which of the following statements is true about both data sets?
A. You can draw the same conclusion from both data sets.
B. The box plots for the data sets would be identical.
C. There were no errors in the data collection.
D. Both data sets show a strong relationship between the compared values.

3. Which of the following statistics would provide a good comparison between data sets?
A. mean
B. interquartile range
C. correlation
D. all of these

4. There are two sets of rainfall data for two different time periods in the same location.

Period 1: 2.3, 2.1, 2.2, 2.2, 2.2, 2.1, 2.4, 2.5, 2.2, 2.0, 1.9, 1.9, 2.1, 2.2, 2.3
Period 2: 2.3, 2.1, 3.3, 1.5, 3.6, 1.6, 3.0, 1.1, 4.7, 2.1, 2.4, 1.9, 2.8, 0.5, 2.3

What can you say about the mean rainfall when comparing the two time periods?

A. The mean in period 1 is higher than the mean in period 2.
B. The mean in period 2 is higher than the mean in period 1.
C. The mean in period 1 is the same as the mean in period 2.