Q:

The following data pairs represent the average temperature x (in degrees Fahrenheit) and electricity costs y (in dollars) for different homes: (65, 147), (59, 141), (71, 176), (78, 189), (82, 183), (85, 211), (88, 231), (91, 227), (84, 198), (79, 188), (63, 152), (59, 126) Which of the following values is most likely the closest to the correlation coefficient of the data?

Accepted Solution

A:
Answer:0.97Step-by-step explanation:To find the correlation coefficient, we must plot all of the data values in lists in the graphing calculator.  The x-values go into the first list and the y-values go into the second list.From here, we bring up the scatter plot.  We then calculate the linear regression; when we do this, we see that r = 0.97.