Lecture 19 Flashcards
1
Q
What does the slope of the line in linear regression indicate?
A
The strength of the relationship
2
Q
What does a steep slope indicate?
A
A stronger relationship
3
Q
What does a flat slope indicate?
A
A weaker relationship
4
Q
What is the equation for a regression line?
A
y = a + ( b x X)
5
Q
In the equation for a regression line, what does (a) represent?
A
The y-intercept
6
Q
In the equation for a regression line, what does (b) represent?
A
The strength and direction of the relationship
7
Q
In the equation for a regression line, what does (X) represent?
A
The predictor value
8
Q
Can regression be used to identify cause and effect?
A
No, but it can suggest a causal relationship
