By age 25 years nearly what percentage of emerging adults have had sexual intercourse at least once?
a. 100%
b. 90%
c. 80%
d. 70%
A
Psychology
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Suppose that the correlation between weight and the number of hours spent working out per week is +.84 . What proportion (or percent) of the variability in weight is accounted for by the relationship with the number of hours spent working out?
a. 91% b. 71% c. 42% d. Cannot be determined
Psychology
Approximately how many hours per day do American adolescents spend watching video?
A) 2.5 B) 3.5 C) 4.5 D) 5.5
Psychology
Answer the following statement(s) true (T) or false (F)
Sampling error is the difference between a sample statistic and the parameter it estimates.
Psychology
Which type of need must be met first according to Abraham Maslow's hierarchy of needs?
A. Belongingness and love B. Esteem C. Safety D. Physiological
Psychology