Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has oil and the test predicts it? 0.09 0.11 0.36 0.44
The probability of having oil is 45% or 0,45 The probability of the test predicts it is 80% or 0,80 The probability of having oil and the test predicts it is 0,45 x 0,80 = 0,36