The Correlation Between Height and Leg Length
Introduction: The reason for this experiment was to find out if there is a correlation between leg length and height in both male and female participants. I believe that the taller a participant is, the longer their legs will be. I further believe that male participants will be taller and have longer legs than female participants. The hypothesis was tested by measuring and recording both male and female participant’s height and leg length.
1. Materials and Methods: Researchers measured each participant’s leg length and height using a measuring tape. Results were recorded in centimeters using significant figures. When taking measurements, participants stood up against a wall with the heels of their shoes touching the baseboard. One researcher held the end of the measuring tape while the other took the measurement by making a mark with a pencil on paper that was taped to the wall. This method ensured that the results were as accurate as possible. When measuring leg length, participants placed one end of the measuring tape under the heel of their shoe while the researcher measured from the base of the foot to the hip.
2. Results: According to the data plotted in the graphs there was a strong relationship in female participants showing greater height with longer leg length. For male participants it was mixed and did not show much of a trend. This could be because most male participants were in the same range. The average male height was 180.37 cm with a range of 16.63 cm. The average male leg length was 102.57 cm with a range of 30 cm. The average height for female participants was 171.51 cm with a range of 25.11 cm. The female average leg length was 101.69 cm with a range of 22 cm.
3. Discussion: The results of the experiment show that there is a trend among greater height and longer leg length among both males and females. Data found during this experiment showed a greater correlation in females than in males. I believe this is due to the small sample size of the group and male participants being in the same range of height and leg length. The slope of the best fit line was steeper for females than it was for males. This shows a greater trend among female participants. However, the data did prove with no question that male participants average height and leg length was greater than that of the female participants. I believe there could have been errors made in the measurements taken by researchers. Most measurements were taken quickly and not double-checked for accuracy. I believe that this experiment could be improved by both having a larger group of participants and by carefully taking multiple measurements of each participant and then averaging the measurements.
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