Regression and Line of Best Fit

Front

Find the equation of the line of best fit for the given data: y = 163.41x+1.49, y =- 163.41x+ 4.19 , y =- 4.19x+163.41 , y = 4.19x -163.41

Back

y = 4.19x -163.41

Front

Predict the number of chapters in a book with 180 pages using the trend line from a scatter plot showing the relationship between chapters and pages.

Back

18 chapters

Front

If Joe worked 30 hours, how much is he expected to earn? Options: $600, $200, $1000, $800

Back

$600

Front

What is the type of correlation? Options: Negative, no association, positive

Back

no association

Front

About how many male math teachers were there in 2006? Options: 15, 30, 35, 45

Back

35

Front

Which scatter plot shows a linear relationship between x and y? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph C

Front

What is a line of best fit used for?

Back

To make predictions

Front

Back

617.51 miles

Front

Write the linear regression equation for the following data points. Round to the nearest hundredth.

Back

Front

Calculate the linear regression equation of the data from the restaurant's pizza prices.

Back

y = 1.5x + 12