The scatterplot below shows the amount of electric energy generated, in millions of megawatt-hours, by nuclear sources over a10‑year period. Of the following equations, which best models the data in the scatterplot?

A scatterplot is shown.Which equation best models the data in the scatterplot? A. y = x + 50 B. y = x + 60 C. y = 5x + 50 D. y = 5x + 60

The scatter plot shows the number of hours worked and money spent on entertainment by each of 21 students. Also shown is the line of best fit for the data.Fill in the blanks below.y510152025303540455055606570x2468101214161820220AmountofmoneyspentonentertainmentindollarsNumberofhoursworked(a)For these 21 students, as the number of hours increases, the amount of money spent tends to ▼(Choose one)(b)For these 21 students, there is ▼(Choose one) correlation between the number of hours worked and the amount of money spent.(c)Using the line of best fit, we would predict that a student working 12 hours would spend approximately ▼(Choose one)

Scatterplot/Scattergram: Illustrate with examples.

A scatterplot with a linear model is shown.Which best describes the linear model? A. The linear model does not describe the data well because there are not the same amount of points above the line as below the line. B. The linear model describes the data well because the points are scattered above and below the line. C. The linear model does not describe the data well because it does not go through any of the points. D. The linear model describes the data well because some of the points are close to the line.

Three scatter plots are shown below. Use them to answer the questions below the graphs.A. For one of the three scatter plots, r = –0.83. Which one do you think it is?Explain.B. Which graph has a least-squares fit line with the equation y = 0.6x + 1.75?Explain.