Select the correct answer. nathan had an infection, and his doctor wanted him to take penicillin. because nathan’s father and paternal grandfather were allergic to penicillin, nathan had 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. what is the probability that nathan is allergic to penicillin and the test predicts it?

Step-by-step explanation:

Call A to the event in which Nathan is allergic to penicillin

So

Call B the event in which the skin test predicts correctly.

So:

We look for the probability that Nathan is allergic to penicillin and the test predicts it.

This is .

homozygous. one is homozygous, while two is heterozygous.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.