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The scatter plot shows the relationship betweeen the number of hours students spend watching television and the numer of hours they spend with friends each week. A graph is titled Television and Hours Spent with Friends. On the x axis, the label is Weekly Hours Spent with Friends and shows numbers from 0 to 12 at increments of 1, and on the y axis, the label is Weekly Hours of Watching Television and the numbers from 0 to 12 are shown at increments of 1. Dots are made at the ordered pairs 0,7 and 1,6 and 2,6 and 3,5 and 4,5 and 5,4 and 6,2.5 and 7,3 and 8,2 and 9,1 and 10,1. A line joins the ordered pairs 0,6.9 and 10, 0.75. What is the y-intercept of the line of best fit and what does it represent? (1 point) 6.9 hours; the number of hours students watch television in a week when they do not spend time with friends 11.1 hours; the number of hours students spend time with friends in a week when they do not watch television 6.9 hours; the number of hours students spend time with friends in a week when they do not watch television 11.1 hours; the number of hours students watch television in a week when they do spend time with friends

User Matt Dnv
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The y-intercept of the line of best fit is 6.9 hours. This represents the estimated number of hours students spend watching television in a week when they do not spend time with friends. Option A

How to determine line of best fit

The y-intercept is an important idea in linear regression. It is used to model the relationship between two things in statistics. In this situation, the y-intercept shows where the line starts when the number of hours spent with friends each week is zero.

In the graph described in the question, if students don't spend any time with friends during the week, it's estimated that they watch 6. 9 hours of TV.

The line of best fit is a line that shows the general pattern or connection between two things (like how much time people spend watching TV each week and how much time they spend with friends) using the information we have.

User Erik Nijland
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