An oil company purchased an option on land in Alaska. Preliminary geologic studies assigned the following prior probabilities.

P(High- quality oil) = 0.3

P(medium - quality oil)=0.4

P (no oil)= 0.3

a. What is the probability of finding oil (to 1 decimal)?

b. After feet of drilling on the first well, a soil test is taken. The probabilities of finding the particular type of soil identified by the test are given below.

P(Soil /High- quality oil) = 0.4

P(Soil/medium - quality oil)=0.4

P (Soil/no oil)= 0.2

Given the soil found in the test, use Bayes' theorem to compute the following revised probabilities (to 4 decimals).

P(Soil /High- quality oil) = ?

P(Soil/medium - quality oil)= ?

P (Soil/no oil)= ?

c. What is the new probability of finding oil (to 4 decimals)?

answer: i believe its b. if you sound out the sentences that sounds wrong.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

step-by-step explanation:

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