Question
x (hr) 28 5 22 38 22 25 15 5 y (gal) 49 3 32 57...
| x (hr) | 28 | 5 | 22 | 38 | 22 | 25 | 15 | 5 |
| y (gal) | 49 | 3 | 32 | 57 | 35 | 35 | 27 | 9 |
Verify that Σx = 160, Σx2 = 4096,
Σy = 247, Σy2 = 9943, and Σxy
= 6352.
Compute r.
Homework Answers
Answer #1
ANS.
| OBS. | x(hr) | y(gal) | x^2 | y^2 | x*y |
| 1 | 28 | 49 | 784 | 2401 | 1372 |
| 2 | 5 | 3 | 25 | 9 | 15 |
| 3 | 22 | 32 | 484 | 1024 | 704 |
| 4 | 38 | 57 | 1444 | 3249 | 2166 |
| 5 | 22 | 35 | 484 | 1225 | 770 |
| 6 | 25 | 35 | 625 | 1225 | 875 |
| 7 | 15 | 27 | 225 | 729 | 405 |
| 8 | 5 | 9 | 25 | 81 | 45 |
| SUM = | 160 | 247 | 4096 | 9943 | 6352 |
PLZ RATE IT
POSITIVE
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