MODULE 2 - SCATTER PLOTS

Question 1

scatter plot

Answer 1

depicts the relationship between two variables on a rectangular coordinate system, where each axis corresponds to one variable. Scatter plots are used for both quantitative and categorical data.

Question 2

regression curve (2)

Answer 2

1. is a curve added to a scatter plot that shows the relationship between two variables.
2. The regression curve predicts the -value for any given -value. However, actual data points are often not on the regression curve.

Question 3

Linear regression

Answer 3

is a way to model the linear relationship between two quantitative variables, using a line drawn through those variables’ data points, known as a regression line.

Question 4

Response variable

Answer 4

is the variable being modeled or predicted

Question 5

PREDICTOR VARIABLE

Answer 5

is the variable used to predict the response.

Question 6

Sum of squared errors

Answer 6

is the sum of the squared differences between the Y values of the data points and the values obtained from the regression line.