Homework Sourse34 A survey was conducted in 2013 in three metropolitan stat
34. A survey was conducted in 2013 in three metropolitan statistical areas (MSAs) to study the existence of a sexually transmitted disease (STD). Based on the survey, the gender distribution of cases of the STD in the three MSAs is presented below…
MSAs
Male Cases
Female Cases
X
2,000
1,500
Y
3.000
1,000
Z
4.000
2,000
Total
9,000
4,500
The incidence rate for the STD was: (1 point)
A. Three times as common among males than females in MSA Y
B. Twice as common among males than in females when all three MSAs are considered together
C. The lowest in MSA Y
D. Not computed, as the data provided were inadequate.
| MSAs | Male Cases | Female Cases |
| X | 2,000 | 1,500 |
| Y | 3.000 | 1,000 |
| Z | 4.000 | 2,000 |
| Total | 9,000 | 4,500 |
Solution
B. Twice as common among males than in females when all three MSAs are considered together
