problem-3.10

problem-3.10  The graphs are produced as follows:
> attach(stud.recs)
> plot(density(sat.m))
> lines(density(sat.v),lty=2)
> qqplot(sat.m,sat.v)
> detach(stud.recs)
    
We see from the densityplots that the center for sat.v appears to be larger. From the q-q plot it looks like the two distributions have similar shapes, as the points align fairly well.