STAT 1450 Chapter Notes - Chapter 5: Video Lesson, Scatter Plot, Dependent And Independent Variables
9 Oct 2018
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Guided notes associated with the lecture videos for section 5. 1. Scatterplots and correlation coefficients are helpful in describing the strength and direction of the relationship between two quantitative variables. Connecting chapter 5 to our current knowledge of statistics. Recall that we began our conversation about pairs of quantitative variables by looking at factors that influence the amount paid monthly for rent. Then we investigated an example comparing percentage growth in per capita income to resident"s education. Suppose that 14% of residents for another ohio city have at least 4 years of college. The mayor for this city predicts a 50% increase in per capita income. The scatterplot comparing the percentage growth in per capita income and proportion of residents with at least 4 years of. Question 1: what are the direction, strength, and form of the relationship between the two variables. If not, use the scatterplot to provide a more reasonable estimate.
