In: Statistics and Probability
The number of hours studied, x, is compared with the grade received, y.
x | 4 | 7 | 1 | 6 | 4 |
y | 75 | 75 | 65 | 95 | 60 |
(a) Complete the preliminary calculations: SS(x), SS(y), and
SS(xy).
(SS(x))
(SS(y))
(SS(xy))
(b) Find r. (Give your answer correct to three decimal
places.)
4 | 75 | 16 | 5625 | 300 |
7 | 75 | 49 | 5625 | 525 |
1 | 65 | 1 | 4225 | 65 |
6 | 95 | 36 | 9025 | 570 |
4 | 60 | 16 | 3600 | 240 |
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