The two-way table shows the results of a recent study on the effectiveness of the flu vaccine.
Pos. Neg. Total
Vaccinated465 771 1,236
Not Vaccinated485 600 1,085
Total950 1,371 2,321
What is the probability that a randomly selected person who tested positive for the flu is vaccinated?
A$\frac{465}{2,321}$
B$\frac{465}{1,236}$
C$\frac{465}{950}$
D$\frac{465}{485}$
| Pos. | Neg. | Total | |
Vaccinated | 465 | 771 | 1,236 |
Not Vaccinated | 485 | 600 | 1,085 |
Total | 950 | 1,371 | 2,321 |
A$\frac{465}{2,321}$
B$\frac{465}{1,236}$
C$\frac{465}{950}$
D$\frac{465}{485}$