In a sample of 1,000 people who are screened for Disease A, 100 actually have the disease. The screening test identifies 90/100 of the diseased individuals as potential disease cases. The sensitivity of the screening test is:

The answer to the question is

The test is 90 % sensitive

Step-by-step explanation:

The sensitivity of a screening test is defined as the capability of a screening test to accurately diagnose an individual as having a disease (true positive rate while test specificity is the capability of a test to correctly indicate the individuals not having a disease also known as the true negative rate. It is given by

Where TP = True Positive and

FN = False Negative

Here the test is able to diagnose 90 out of 100 correctly that is the test is 90% sensitive

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.