The following frequency distribution provides a certain condition prevalence frequency distribution for 63 regions.

Condition (%) Frequency 4–under 5 8 5–under 6 10 6–under 7 18 7–under 8 13 8–under 9 7 9–under 10 4 10–under 11 3 A = event that has a prevalence of at least 8%

B = event that has a prevalence of less than 7%

C = event that has a prevalence of at least 5% but less than 10%

D = event that has a prevalence of less than 9%

a. Determine the number of outcomes (regions) that constitute the event (not C).

b. Determine the number of outcomes (regions) that constitute the event (A & B).

c. Determine the number of outcomes (regions) that constitute the event (C or D).

d. Determine the number of outcomes (regions) that constitute the event (C & B).