Exercise: Scatterplot

  1. Data File: Scatterplot.MTW

    A medical researcher studies obesity in adolescent girls. Because body fat percentage is difficult and expensive to measure directly, the researcher wants to determine whether the body mass index (BMI), which is a measurement that is easy to take, will be a good predictor of body fat percentage. The researcher collects BMI, body fat percentage, and other personal variables of 92 adolescent girls. Use the “Scatterplot.MTW” data file to run a scatterplot on BMI vs. %Fat.

    Question:

    Does there appear to be a linear relationship between BMI and %Fat?

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