Question

Compute the correlation coefficient for the data set. (2,19), (3,22), (4,26), (5,20), (6,35), (7,30), (9,40), (10,42), (11,35) Enter your answer as a decimal, like this: 0.42Click on the following link to use the GeoGebra graphing calculator.

Answer 1

Explanation

We are asked to compute the correlation coefficient using a graphing calculator

To do so, we have the following:

From the data plot above, we have the correlation coefficient as:

$r=0.8679$

So the answer is 0.87 (to 2 decimal places)