Based on geological studies done on land in East Texas, a petroleum compond no oil is 26%. probability of finding high-quality oil is 31%, medium-quality oil is 43%, and soil test (since Since drilling can be expensive, the petroleum company also plans on doing a soil test (sinee certain soil types are more apt to detect the presence and quality of oil). For example, the petroleum company knows that in 13% of high-quality oil finds, 9% of medium-quality oil finds, and 4% of no oil finds, the soil is Type A. So, for this East Texas land dium-quality oil is 43%, and no oil is 26%
1. Find the probability that high-quality oil is found given the soil was not Type A.
2. Find the probability the soil was not Type A or no oil is found.
3. Find the probability oil is found given the soil was Type A.