Question

Nathan had an infection, and his doctor wanted him to take penicillin. Because Nathan’s father and paternal grandfather were allergic to penicillin, Nathan has a 75% chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate. If the test predicts that Nathan is not allergic to penicillin, what is the probability after the test that Nathan is not allergic to the drug?

A. 0.1135

B. 0.2450

C. 0.9423

D. 0.9932

Answer 1

@ganeshie8

Answer 2

@BSwan

Answer 3

@ganeshie8 help plz help

Answer 4

(1-p( chance of having the same allergy ) ) * p(test accurate )

Answer 5

got it ?

Answer 6

thanksssss !:D

Answer 7

np :)

Answer 8

what is ur answer ?

Answer 9

I got 2.45. So i put in B but they said it was wrong. So idkkk lol

Answer 10

its 0.2450
the ansewer is B , u put B ?

Answer 11

yea i put B. It said incorrect as soon as i put it in smh

Answer 12

sry :'(
im stillwonderingwhat the answer could be :-\

Answer 13

the correct answer is D