Question
Asked Dec 20, 2019
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Scatterplot. In Exercises 5–8, use the sample data to construct a scatterplot. Use the first variable for the x-axis. Based on the scatterplot, what do you conclude about a linear correlation? 

Brain Volume and IQ The table lists brain volumes (cm3 ) and IQ scores of five males (from Data Set 8 “IQ and Brain Size” in Appendix B).

Brain volume (cm)
1173
1067
1347
1029
1204
IQ
101
93
94
97
113
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Brain volume (cm) 1173 1067 1347 1029 1204 IQ 101 93 94 97 113

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Expert Answer

Step 1

Use MINITAB to draw the scatterplot.

Step 1: Choose Graph > Scatter plot.

Step 2: Choose Simple, and then click OK.

Step 3: Under Y variables, enter a column of IQ.

Step 4: Under X variables, enter a column of Brain Volume.

Step 5: Click OK.

Step 2

Output:

...
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Scatterplot of IQ vs Brain Volume 115 110 105 100 95 90 1000 1050 1100 1150 1200 1250 1300 1350 Brain Volume DI

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