Why is a sample used more often than a population?

Policies that physically separate a minority group from the dominant group.

Researchers have found that it takes to view a mental image that is larger or covers more distance than a smaller or more compact one.

Ahmad is five years old and he has just been caught watching television when he was supposed to be studying according his father’s orders. when his father hears of this incident, he yells at him, spanks him, and restricts him from watching television for one week. ahmad’s father is displaying a(n) parenting style in this scenario.