Posted by **tracy** on Sunday, June 23, 2013 at 12:04am.

Consider the following set of data.

(18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13)

(a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.)

.

(b) Calculate the standard deviation of the six x-values and the standard deviation of the six y-values. (Give your answers correct to three decimal places.)

sx =

sy =

(c) Calculate r, the coefficient of linear correlation, for the data in part (a). (Give your answer correct to two decimal places.)

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