Brain Size The boxplots show the brain size (in hundreds of thousands of pixels) for 20 men and 20 women. Estimate the numerical values of the medians by using the boxplots.
Do these men, or do these women, have greater variation in brain size? Why?
(Source: Willerman, L., Schultz, R., Rutledge, J. N., and Bigler, E. (1991), "In Vivo Brain Size and Intelligence," Intelligence, 15, 223-228.)
