1.The following is a set of data from a sample of n=11 items. Complete parts (a) through left parenthesis (c).

X821231415465116

Y164246283081210232

a. Compute the sample covariance_____________(Round to three decimal places as needed.)

b. Compute the coefficient of correlation_______________. (Do not round until the final answer. Then round to three decimal places as needed.)

c. How strong is the relationship between X and Y? Explain.

a)X and Y have no correlation.

a)X and Y have a strong positive correlation because as X increases, Y tends to increase also.

b)X and Y have a perfect negative correlation because all points fall on a straight line with a negative slope.

X and Y have a perfect positive correlation because all points fall on a straight line with a positive slope