Question

the scatterplot shows the relationship between the number of pages and the number of chapters for several books. use the regression line to predict how many chapters would be in a book with 100 pages. 12 chapters 21 chapters 18 chapters 15 chapters

Explanation:

Step1: Analyze the trend of the scatter - plot

The scatter - plot shows a positive linear relationship between pages and chapters. We can assume a linear model \(y = mx + b\) (where \(y\) is the number of chapters, \(x\) is the number of pages).

Step2: Estimate the value

Looking at the scatter - plot, when \(x = 100\) (pages), by visual inspection of the trend line (the line that best fits the data points), we can estimate the value of \(y\) (chapters).

Answer:

12 chapters