The scatter plot shows the relationship between the weekly hours of watching television and the weekly hours spent exercising, by the students of a high school:

Question

The scatter plot shows the relationship between the weekly hours of watching television and the weekly hours spent exercising, by the students of a high school:

A scatter plot is shown with the title Leisure Activities. The x-axis is labeled hours spent exercising, and the y-axis is labeled hours spent watching TV. Data points are located at 1 and 4, 2 and 6, 2 and 3, 4 and 3, 6 and 1, 4 and 5, 7 and 2, 0 and 6. A line connects the points 0 comma 6 and 8 comma 0.

What is the y-intercept of the line of best fit and what does it represent?

Answer 1

The y-intercept of the line of best fit is 6. This represents the predicted number of hours spent watching TV per week when the number of hours spent exercising is 0. In other words, it represents the baseline amount of time spent on watching television when no time is devoted to exercising.