Complete the mcq:
A screening test for breast cancer was administered to 400 women with biopsy-proven breast cancer and to 400 normal women without breast cancer. The screening test results were positive for 100 of the biopsy-proven cases and 50 of the normal women.
1. The sensitivity of the test is (Round to no decimal places):
a. 88%
b. 67%
c. 25%
d. 33%
e. 12%
2. The specificity of the test is (Round to no decimal places):
a. 88%
b. 67%
c. 25%
d. 33%
e. 12%
3. The predictive value of a positive test is (Round to no decimal places):
a. 88%
b. 67%
c. 25%
d. 33%
e. 12%