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September 21, 2014

Homework Help: math

Posted by tracy12 on Tuesday, June 25, 2013 at 10:49am.

Consider the following bivariate data.

Point A B C D E F G H I J
x 3 4 2 1 7 2 1 0 4 2
y 1 7 3 3 6 6 5 0 6 2

(a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this work.)

(b) Calculate the covariance. (Give your answer correct to two decimal places.)
Incorrect: Your answer is incorrect. .

(c) Calculate sx and sy. (Give your answers correct to three decimal places.)
sx = Incorrect: Your answer is incorrect. .
sy = Incorrect: Your answer is incorrect. .

(d) Calculate r using formula 13.2. (Give your answer correct to two decimal places.)
Incorrect: Your answer is incorrect. .

(e) Calculate r using formula 13.3. (Give your answer correct to two decimal places.)
Incorrect: Your answer is incorrect. .

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