Lesson 06: The Slope of a Fitted Line | Unit 6: Associations in Data

Which of these statements is true about the data in the scatter plot?

What does the scatter plot suggest about the relationship between the number of at bats and the number of hits?

The linear model for some butterfly data is given by the equation $$y = 0.238x + 4.642$$ . Which of the following best describes the slope of the model?

Using the data in the scatter plot, what can you tell about the slope of a good model for this data?

Using the data in the scatter plot, what is a reasonable slope of a model that fits this data?

What does the slope mean in this situation? Context: Here is a scatter plot that shows the number of assists and points for a group of hockey players. The model, represented by $$y = 1.5 x + 1.2$$ , is graphed with the scatter plot.

Based on the model, how many points will a player have if he has 30 assists? Context: Here is a scatter plot that shows the number of assists and points for a group of hockey players. The model, represented by $$y = 1.5 x + 1.2$$ , is graphed with the scatter plot.

Here is a scatter plot of weight vs. age for different Dobermanns. The model represented by $$y = 2.45x + 1.22$$ is graphed with the scatter plot. Here, $$x$$ represents age in weeks, and $$y$$ represents weight in pounds. What is the slope and what does it mean in this situation?

Based on the model $$y = 2.45x + 1.22$$ , how heavy would you expect a newborn Dobermann to be?