Linear Regression Analysis

Question 1

It attempts to model the relationship between two variables by fitting a linear equation to observe data. One variable is considered to be an explanatory/independent variable, and the other is considered to be a dependent variable.

Answer 1

Linear Regression

Question 2

It is the slope of the line

Answer 2

b

Question 3

a or blank is the value of y when x=0

Answer 3

intercept

Question 4

A linear regression line has an equation in the form of?

Answer 4

Y=a+bX

Question 5

Used when you want to predict the value of a variable based on the value of another variable, using one independent variable.

Answer 5

Simple Linear Regression

Question 6

It is the explanatory/independent variable.

Answer 6

X

Question 7

It is the dependent variable.

Answer 7

Y

Question 8

formula of b

Answer 8

B=n(Σxy)-(Σx)(Σy)
________________
n(Σx²)-(Σx)²

Question 9

formula of a

Answer 9

a= (Σy)-b(Σx)/n

Question 10

Note: What is trying to find is usually the dependent variable.

Answer 10

Y