PROBLEM: Is the pulse rate the same for boys and girls?

PREDICTION:  

EXERCISE 1. Find an artery close to the surface of your body (either wrist or neck). Count your pulse for 15 seconds. Have your partner keep watch of the time while you count. Add the number four times (or multiply by four). This will record your pulse rate per minute.

My pulse rate: trial l ______ X 4 = _____ beats per minute

(15 second trial) trial 2 ______ X 4 = _____ beats per minute

trial 3 ______ X 4 = _____ beats per minute

sum of trials ________

Average pulse rate (sum of trials divided by 3) = _______

How does your rate compare with your partner's? ________________________

After running in place for one minute, my pulse rate is:____________ beats per minute

EXERCISE II. Let's look at the class average and see if there is a difference between the girls' and boys' pulse rate. 

Find the average: add up all the pulse rates under each section and then divide by the number of people in that section.

CONCLUSION: What did we determine in this experiment?