asked 59.9k views
1 vote
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​

2 Answers

2 votes
Nathan has a 25% chance of NOT being allergic to the drug. And then that 25% is 98% accurate so:

25% x 98%

0.25 x 0.95 (changed to decimals)

= B) 0.2450
answered
User Digibake
by
8.0k points
4 votes

Answer:

this is the answer!!

Explanation:

Nathan had an infection, and his doctor wanted him to take penicillin. Because Nathan-example-1
answered
User Robin Vinzenz
by
8.3k points
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