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Pulse Rate Coursework For my coursework I have chosen to explore hypotheses about Heart Pulse Rates. I will be collecting data to prove or disprove each hypothesis. To help me I have taken a random sample of 50 people from year 7 through to year 11. I have randomly chosen 5 boys and 5 girls from each year so that my data is an unbiased representation of the school. I chose 5 people at random by giving each student a number then using the random number key on my calculator. I gave each student a questionnaire to fill in about his or her health. I also took their pulse rate 4 times. Initially before any exercise and then again after I made him or her run a set length of 50 metres. After that they had a 5-minute rest after which I took their pulse. Finally they ran the set length once more and then their pulse was taken down and I calculated the average of the four readings. An example of my questionnaire is: Age: 14 Gender: Female Year: 9 How many hours of exercise a week do you do? 3 Do you smoke? Yes. Do you drink alcohol? Sometimes. How often and how much? Not very often, mainly special occasions and a little. Describe what you eat in a typical day? Toast, sandwich, crisps, chocolate, apple, chips, beans, etc