# a.) -0.87b.) -0.34c.) +0.34d.) +0.87please show all work .pdf

24. Mar 2023
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### a.) -0.87b.) -0.34c.) +0.34d.) +0.87please show all work .pdf

• 1. a.) -0.87 b.) -0.34 c.) +0.34 d.) +0.87 please show all work and how you got your answer :) Solution Recall that the correlation coefficient ranges from -1 to 1. Values closer to -1 or 1 indicate stronger linear relationships. A strong linear relationship is when datapoints plot in a nearly straight line. A value close to 0 indicates no linear relationship. In this case, the datapoints would plot in a vague boxy cloud shape. A correlation coefficient with a positive value indicates that the relationship is positive; as x values increase, y values increase as well. A negative correlation coefficient means that as x values increase, y values decrease. In the graph shown, we see that the data are plotting in an upward manner, indicating a positive relationship. And because the points tend to plot in a straight line, we can say that the correlation coefficient should be closer to 1 than to 0. This leaves us with D) +0.87.