Use the table to create a scatterplot. Determine the type of association. x 25 30 80 150 250 350 425 450 500 y 375 225 120 75 50 100 175 275 400 (1 point) Responses linear association linear association no association no association negative linear association negative linear association non-linear association non-linear association

3 answers

To create the scatterplot, plot the points (25, 375), (30, 225), (80, 120), (150, 75), (250, 50), (350, 100), (425, 175), (450, 275), and (500, 400) on a graph.

The type of association appears to be a negative linear association, as the points form a downward sloping line.
A librarian collected data on the number of pages in chapters of a book. Interpret the slope and the y -intercept of the linear model. Round the slope to the nearest hundredth. (1 point) Responses For every chapter of a book, there is an average of 10 pages. For every chapter of a book, there is an average of 10 pages. For every chapter of a book, there is an average of110 page. For every chapter of a book, there is an average of Start Fraction 1 over 10 End Fraction page. For every chapter of a book, there is an average of 0.1 page. For every chapter of a book, there is an average of 0.1 page. For every 10 chapters of a book, there is an average of 1 page.
The slope of the linear model is typically interpreted as the rate of change of the dependent variable (y) for a unit change in the independent variable (x). In this case, for every chapter of a book, there is an average of 10 pages, so the slope of the linear model would be 10.

The y-intercept of the linear model is the value of y when x is 0. In this context, it may not make sense to have 0 chapters in a book, so the y-intercept may not have a practical interpretation in this case.