Unit 7 - Correlation + Regression : Regression Lines Flashcards
1
Q
Whats a regression line?
A
The best line of best fit
2
Q
Regression line formula
A
y = a +bx
a - value of y when x=0
b - the increase in y when x increases by 1
3
Q
Mean point
A
Find the mean of x-axis values and y-axis values