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 Make a prediction about the relationship between pulse rate and age.

 

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 Explain how you will find a group of people to participate in your study to prove your hypothesis.

Your study should include 40-50 individuals from birth to age 21.   Follow these procedures to find the pulse rates of your sample population (participants).
 

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 Place your index and middle finger of one hand on one of the pulse points.
b.GIF (1522 bytes) Have a group member look at a watch or clock with a second hand.   Count the number of beats that you feel in 15 seconds, 30 seconds, and seconds. Then calculate the pulse rate in beats per minute.

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 Examen your results to see if pulse rates are constant at 15 seconds, 30 seconds, and 60 seconds.
 

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 Make a chart to Gather your data from your participants.  Your chart should look like the following example:

Age

Pulse Rate (beats/min)

 Male Female
       
       
       
       
 

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 Make a scatter plot of your results.  Make a key to show how you distinguished between your male and female participants.

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 Approximate the line of best fit and draw it on the scatter plot.   Explain how you knew where to draw the line.

 

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 Describe the correlation between pulse rate and age shown in your scatter plot.

 

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 Describe any significant differences between age and gender.

 

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 What other information does your group agree that the data shows?

 

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 Write several paragraphs summarizing your study.  Explain how you gathered your data, how you selected your participants, the roles of all the group members, your methods for data analysis, and if the results matched your original prediction.