If many large samples are drawn from a population and their means plotted, the variability of those means will be ____ than if many small samples are drawn

If intelligence was determined primarily by heredity, which pair should show the highest correlation between IQ scores?

a) fraternal twins b) identical twins c) brothers and sisters d) parents and children

According to time use researchers, how do people spend most of their weekly free time?

A) watching TV B) learning something new C) playing sports D) organizing their schedules