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Consider the following bivariate data

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

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

(b) Calculate s_x and s_y. (Give your answers correct to three decimal places.)

(d) Calculate r using formula 13.3. (Give your answer correct to two decimal places.)

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