Why is it easier for psychologists to predict group rather than individual behaviors?

Me asap worth brainlieist and 50 points

The ideas of hammond are most clearly an example of which of the following mid-19th century developments? (5 points) the increasingly liberal nature of slavery after the south enforced stronger slave codes the growing use by northern antislavery activists of moral arguments the increasing number of freed slaves in southern states as a result of gradual emancipation laws the growing tendency of southern slaveholders to use the paternal ethos to justify slavery

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?