Year Sport Utility Vehicles (SUVs) Sales in U.S. Sales (in Millions) 1991 1992 1993 1994 1995 1996 1997 1998 1999 0.9 1.1 1.4 1.6 1.7 2.1 2.4 2.7 3.2 1991.

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Presentation transcript:

Year Sport Utility Vehicles (SUVs) Sales in U.S. Sales (in Millions) x y Year Vehicle Sales (Millions) Plotting data points in the coordinate plane and interpreting scatter plots.

x y Year Vehicle Sales (Millions) Trend is increasing. Scatterplot - a coordinate graph of data points. Trend appears linear. Positive correlation. Predict the sales in 2001.

Plot the data on the graph such that homework time is on the y-axis and TV time is on the x-axis.. Student Time Spent Watching TV Time Spent on Homework Sam Jon Lara Darren Megan Pia Crystal 30 min. 45 min. 120 min. 240 min. 90 min. 150 min. 180 min. 150 min. 90 min. 30 min. 90 min.

Plot the data on the graph such that homework time is on the y-axis and TV time is on the x-axis. TVHomework 30 min. 45 min. 120 min. 240 min. 90 min. 150 min. 180 min. 150 min. 90 min. 30 min. 120 min. 90 min. Time Watching TV Time on Homework

Describe the relationship between time spent on homework and time spent watching TV. Time Watching TV Time on Homework Trend is decreasing. Trend appears linear. Negative correlation.

. The following table presents information on tornado occurrences. Make a scatter plot for the table. Year # of Tornadoes

Use the line of best fit to predict how many tornadoes may be reported in the United States in 2015 if the trend continues If the trend continues we predict that there will be 1200 tornadoes reported in 2015.