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Home > CC3MN > Chapter 7 > Lesson 7.3.2 > Problem 7-103


At a family reunion, each family member recorded his or her age and height. 

  1. Fully describe the association.

    As age increases, so does height.

    There is a moderate, positive, linear association. Are there any outliers?

  2. Copy the scatterplot and draw the trend line.  Does your -intercept make sense in this problem situation? 

    A child of 0 years should still have a little positive height.
    What does this mean about the -intercept?

A scatter plot, x axis labeled, age in years, y axis labeled, height in inches. The points are scattered, with low x values, having low y values, and high x values, having high y values.