What is the second most common method of birth control among American adolescents?

Regarding the relationship of personal factors to happiness, which of the following statements is FALSE?

a. Less educated people tend to be a little happier than the more educated. b. Overall, men and women do not differ in happiness, although women do have a tendency to experience higher emotional highs and lower lows than men do. c. People who are satisfied with their jobs tend to be happier, but the association between happiness and job satisfaction is weak. d. Married people report greater happiness than people who are divorced, separated, or single.

If the correlation between two variables is zero:

a) higher scores on one are associated with higher scores on the other. b) they are perfectly related. c) there is no relationship between them. d) they are inversely related.