Monday

April 21, 2014

April 21, 2014

Posted by **tracy** on Sunday, June 23, 2013 at 12:06am.

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) · SS(y)

(2) r = 1.00 Incorrect: Your answer is incorrect. .

- statistics -
**MathMate**, Sunday, June 23, 2013 at 6:01amThe 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.

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