The term in a linear prediction rule that represents the intercept of a regression line is

What equipment makes it possible to implant a tiny electrode into subcortical brain structures?

a) electroencephalograph b) stereotaxic instrument c) positron emission tomography d) computerized axial tomography

Which of these is relatively common?

(a) hypergamy (b) polyandry (c) women paying males for sex (d) alpha societies