Which answer is the best estimate of the correlation coefficient for the variables in the scatterplot?
Accepted Solution
A:
-0.8 would be the best estimate.
The data seem to have a negative correlation, since they are decreasing; this means our r-value will be negative.
Our two negative choices are -0.25 and -0.8.Β -0.8 would be a fairly strong correlation, whereas -0.25 would be a weak correlation.Β The data do seem to be fairly strongly related, so we will use -0.8.