According to the U.S. census in 2012, what percent of black families with children under the age of 18 were headed by a single parent?

Matilda is usually a kind, helpful, and easygoing person. She is high on which of the Big Five traits?

agreeableness neuroticism openness conscientiousness

When a given research finding is believed to have less than a ____ in 100 probability of occurring by chance, it is usually described as being statistically significant

A) 1 B) 5 C) 10 D) 25