Question 2. 5pts

The following table classifies 500 people who are given the Covid-19 test by their Covid-19 test positive or negative and by whether or not have Covid-19 virus.

B1: Have Covid-19 virus

A1: Test positive 115 A2: Test Negative 25

B2: Does not have Covid-19 virus 75 285

If one of these 500 people is selected randomly, find the following probabilities: (a) (2.5pts) P(A2 B2)

(b) (2.5 pts) P B1 | A1