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Math 1040 Term Project

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Math 1040 Term Project

Skye Galley

London Pope

Brittany Wooten

Is length of forearm related to length of hand?

- Our first variable was the length of a person’s forearm and our second variable was the length of a person’s hand. The unit of measurement was in inches.
- Our group gathered data from 60 random people, half were men and half were women. We then measured the length of their forearm (from elbow to wrist) and their hand length (from wrist to top of middle finger) and recorded our data.

Mean: 11.242 inches

Standard Deviation:

1.696 inches

Range: 11 inches

Mode: 11

Outliers: 18 inches

Five-number summary:

minX= 7 inches

Q1= 10.5 inches

med= 11.25 inches

Q3= 12 inches

maxX= 18 inches

Mean: 7.129 inches

Standard Deviation:

0.608 inches

Range: 3.25 inches

Mode: 7 inches

Outliers: 5 inches

Five-number summary:

minX= 5 inches

Q1= 7 inches

med= 7 inches

Q3= 7.5 inches

maxX= 8.25 inches

Linear Correlation Coefficient:

0.66768825

Line of Regression Equation:

y= 4.4385785+ 0.23934068

- The linear correlation coefficients from our research are 0.668 and 0.898 , which is close to +1, meaning there is a strong relationship between our X and Y variables.
- One of the people we measured had a long forearm (18 inches!) our data became thrown off and skewed.
- Because of our high correlation coefficients we conclude that there is a strong relationship between length of forearm and length of hand.