Invalid Application of Linear Regression. Use the information in the following scatterplot for Exercises 62–64. Scrabble (hasbro.com/scrabble/en_US/) is one of the most popular games in the world. We are interested in approximating the relationship between the frequency of the letter tiles in the game and their point value . The scatterplot shows the point value versus the letter frequency, along with the regression line, as plotted by Minitab.
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Scatterplot of Scrabble point value versus letter frequency, with regression line.
Question 4.162
64. Do you think that we should use a regression line to approximate the relationship between frequency and points? If not, explain clearly what you think is wrong.