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 sx and sy. (Give your answers correct to three decimal places.)
(c) Calculate r using formula 13.2. (Give your answer correct to two decimal places.)
(d) Calculate r using formula 13.3. (Give your answer correct to two decimal places.)