Posted by tracy on Sunday, June 23, 2013 at 12:06am.
Consider the following table and use the formulas that are given for computing the correlation coefficient. (Give your answer correct to two decimal places.)
x 1 1 0 0 0
y 7 3 5 6 6
r =
n
xy
−
x
y
n
x2
−
x
2
n
y2
−
y
2
(1)
r =
SS(xy)
SS(x) ยท SS(y)
(2) r = 1.00 Incorrect: Your answer is incorrect. .

statistics  MathMate, Sunday, June 23, 2013 at 6:01am
The answer should be a negative number as the numbers increase as x becomes smaller.
The correlation coefficient lies between 0.2 and 0.3.
Please post your equation for r again to see if it is interpreted correctly.
Most of the time mistakes come from incorrect interpretation of expressions.