In: Statistics and Probability
8. Paranormal researchers collected the following data about the number of UFO and Bigfoot sightings in 8 different areas. The researchers suspect that the aliens are perhaps secretly meeting with Bigfoot.
UFO Sightings |
Bigfoot Sightings |
3 |
8 |
3 |
6 |
1 |
5 |
6 |
10 |
7 |
10 |
4 |
9 |
2 |
7 |
6 |
9 |
( X) | ( Y) | X^2 | Y^2 | X*Y |
3 | 8 | 9 | 64 | 24 |
3 | 6 | 9 | 36 | 18 |
1 | 5 | 1 | 25 | 5 |
6 | 10 | 36 | 100 | 60 |
7 | 10 | 49 | 100 | 70 |
4 | 9 | 16 | 81 | 36 |
2 | 7 | 4 | 49 | 14 |
6 | 9 | 36 | 81 | 54 |