Question

The graph shows the relationship between hours spent on video games and hours spent on homework last week for students in Joyce's class. Joyce created the following scatterplot and regression line to show this relationship.
The fitted line has a y-intercept of 23.

What is the best interpretation of this y-intercept?

A: the model indicates that students who spent 23 hours on video games will average approximately 0 hours spent on homework

B: joyce spent approximately 23 hours on homework

C: joyce spent approximately 23 hours on video games

D: the model indicates that students who spent 0 hours on video games will average 23 hours spent on homework ​

Answer 1

The y - intercept indicates if hours spent on video games is zero, then the total hours spent on homework will be 23.

What is scatter plot?

• A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data.
• If the points are coded, one additional variable can be displayed.
• There are three types of scatter plots or charts: U-shaped, linear and exponential.
• These are the three most important ones: positive, negative, or no correlation.

Given is the graph shows the relationship between hours spent on video games and hours spent on homework last week for students in Joyce's class.

The y - intercept indicates that if hours spent on video games is zero, then the total hours spent on homework will be 23.

Therefore, the y - intercept indicates if hours spent on video games is zero, then the total hours spent on homework will be 23.

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Answer 2

D, as at the Y intercept there is no time spent on video games and 23 hours spent on studying