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1-30.

Kerin discovered that a human’s height is related to his or her reach.  Kerin is curious if the same thing is true for foot size.  1-30 HW eTool (Desmos).  Homework Help ✎

1. It was not practical for Kerin to measure her classmates’ feet, so Kerin collected the following shoe-size data from some of her classmates.  Make a graph with appropriately scaled axes.

What are the largest and smallest values? Consider shoe size and height independently.

Does it matter which data is on the $x$-axis and which is on the $y$-axis?

1. Is there a relationship between shoe size and height?

Examine the scatterplot you made in part (a). Estimate a line of best fit to help you see any trends.

 Shoe Size Height (cm) $6$ $153$ $8$ $160$ $7.5$ $155$ $8.5$ $161$ $8$ $168$ $8$ $166$ $8.5$ $164$ $6.5$ $156$ $10$ $170$ $9.5$ $167$ $7.5$ $158$ $7.5$ $156$ $8$ $161$

Input the data into the eTool below to graph the results.
Click the link at right for the full version of the eTool: CC3 1-30 HW eTool