Brain Size and Intelligence. The table below lists brain sizes (in cm3) and Wechsler IQ scores of

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Brain Size and Intelligence. The table below lists brain sizes (in cm3) and Wechsler IQ scores of subjects (based on data from "Brain Size, Head Size, and Intelligence Quotient in Monozygatic Twins," by Tramo et al, Neurology, Vol. 50, No. 5). Is there sufficient evidence to conclude that there is a linear correlation between brain size and IQ score? Does it appear that people with larger brains are more intelligent?
Brain Size and Intelligence. The table below lists brain sizes

a. Construct a scatterplot for the data.
b. Briefly characterize the correlation in words and estimate the correlation coefficient.

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Statistical Reasoning for Everyday Life

ISBN: 978-0321817624

4th edition

Authors: Jeff Bennett, Bill Briggs, Mario F. Triola

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