Question 1
What is the main purpose of a scatterplot when studying the relationship between two quantitative variables?
Question 2
In the context of a scatterplot, what does it mean when we say the points show a linear pattern?
Question 3
Why is it important to check whether a scatterplot is roughly linear before using linear regression inference for the slope?
Question 4
What does the slope of a regression line describe?
Question 5
Which symbol is commonly used for the population slope in regression inference?