Question

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 NO OIL and the test shows that there is NO OIL ?

A) 0
B) 0.09
C) 0.11
D) 0.44

Answer 1

0.09

Explanation:

.45 x .20 = .09

theres a 45% chance of there being oil and theres a 20% chance the test is inaccurate( just do 100-80 to get that).

Answer 2

The answer is B) 0.09