Question

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 had the disease The individual actually had the disease Yes No Positive Negative The probability is approximately (Round to three decimal places as needed)

Answer 1

Probability of getting someone who tests negative given that he or she had disease =

= P(someone who tests negative , he or she had disease)/P(he or she had disease)

= (7/144)/(1)

= $\frac{7}{144}$ ​​​​​​

= 0.0486

= 0.049

The probability is approximately 0.049