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McGraw Hill Glencoe Algebra 1, 2012 View details

5. Scatter Plots and Lines of Fit

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Exercise 2 Page 250

Would a line of fit for the data have a positive, negative, or no slope?

Positive correlation, see solution.

Practice makes perfect

By drawing a line of fit for the graph, we can determine the type of correlation, if any, for the data.

The graph shows a positive correlation. As the temperature increases, the number of sales also increases. This means that the hotter it gets, the higher the lemonade sales.