Consider the following bivariate data.
Point A B C D E F G H I J
x 5 2 2 7 7 5 4 7 5 4
y 7 3 1 3 7 0 2 6 4 3
(a) Calculate sx and sy. (Give your answers correct to three decimal places.)
sx =
sy =
(b) Calculate r using formula 13.2. (Give your answer correct to two decimal places.)
(c) Calculate r using formula 13.3. (Give your answer correct to two decimal places.)