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Posted by 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 - , 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.

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