1. Excel calculates the correlation between two data columns is -0.856. What does this mean?
A. That the two variables move together about 85.6% of the time
B. That the two variables move in opposite directions about 85.6% of the time
C. That we have a strong indication that the two variables tend to move in opposite directions
D. That the analyst collected incorrect data values
2. In a sample of voters, the proportion of female is 2 in 3. What’s the technical term for this ratio?
A. Absolute frequency
B. Relative frequency
C. Ex ante probability
D. Expected value.