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

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8