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Back to 8.8 Scatter Plots, Correlation, and Regression Lines

8.8 Exercise 15

Avg difficulty 2.5

The data in “MLB2019Off” gives offensive team stats for the 2019 Major League Baseball season. Use that dataset to answer the following questions:

  1. What is the equation of the regression line for runs (R) vs. hits (H)?
  2. How many runs would we expect a team to score if the team got 1500 hits in a season?
  3. Did the Kansas City Royals (KCR) overperform or underperform in terms of runs scored, based on their hit total? By how much?
  4. Write a sentence to interpret the slope of the regression line.

OpenStax Contemporary Mathematics, 8.8 Scatter Plots, Correlation, and Regression Lines, exercise 15

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Adapted from Contemporary Mathematics © 2023 Rice University. Licensed under CC BY 4.0. Source: Contemporary Mathematics. Imported at revision fa7c1a1.