Assume that the anxiety scores for college students approximate a normal distribution with a mean of 25 and a standard deviation of 7.

1. Assume that the anxiety scores for college students approximate a normal distribution with a mean of 25 and a standard deviation of 7. To find the proportion of college students with anxiety scores of 40 or more, convert to a z score and consult

a.column B

b.column C

c.column C or B', depending on the sign of  z

d.column B'

2. A psychotherapist estimates that, during the last ten years, about 800 of her 1,000 patients demonstrated a dramatic improvement in mental health. Therefore, the estimated probability of a dramatic improvement among her new patients is

a..08

b..80

c.8 out of 10

d.800