If the mean score on a stress scale is 5, the standard deviation is 2, and the distribution is normal, the percentage of people who would obtain scores between 5 and 9 is

Which of the following statements about age-related differences in Schaie's five primary abilities is true?

Only one of the abilities increases from ages 20 to 50. Cohort effects may have been the result of younger generations completing more education taught by educators who valued logic over facts. After age 35, there were moderate decreases in all of the abilities. Each successive cohort tended to score lower than previous generations in verbal memory and inductive reasoning but higher in number ability.

To aid the newborn Shelly's breathing,

a. she is slapped on the buttocks. b. she is held upside down to expel mucus. c. suction is used to remove mucus from her mouth. d. she is given an episiotomy.