One day, you notice your 6' 2" roommate's size 12 shoes and comment, "I think height and foot size are correlated". You're somewhat surprised (and irked) by his response, "I think short people have big mouths." You decide to test your hypothesis; you find five people and record their heights (in inches) and shoe sizes. Calculate a Pearson r based on the following data:
Person Shoe Size Height
1 12 74
2 8 62
3 10 73
4 9 64
5 9½ 65