What did we do?

We gathered a bunch of our friends and went on three different rides: Supreme Scream, Ghostrider and Boomerang. We taught our friends how to find their pulse rates. Our friends took their pulse rates before going on each ride and again right after the ride was over. Each person wrote down his or her pulse rate on a card. We subtracted the two readings to find the increase in each person's pulse rate. Our friends also recorded how scary they thought each ride was, on a scale of 1 to 5. At the end, we averaged up the numbers for each ride and looked for any patterns. more...