The data represent the results for a test for a certain dise

The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests

negative

given that he or she

did not have

the disease.

The individual actually had the disease

,Yes,No
Positive,141,6
Negative,17,136

The probability is approximately

(Round to three decimal places as needed.)

Solution

there are 136+6 people who DO NOT have the disease. so the total is 142. of these with the disease, 136 test NEGATIVE. so 136/142 is the probabiltiy of NEGATIVE, given NOT HAVING the disease.