The probability that Emma has heart disease is 0.6. She decides to take a test for the disease that is 80% accurate. What is the probability that Emma has heart disease and the test predicts heart disease?

Question

anonymous · Answer

i need an explanation too

dumbcow · Answer

Ok here we have 2 independent events, you can find prob that both are true by multiplying the probabilities
$$P(A and B) = P(A)*P(B)$$
$$= P(heart disease) * P(test accurate)$$
$$= 0.6* 0.8$$