An oil company is drilling for oil at three sites. According to geological tests

Question

An oil company is drilling for oil at three sites. According to geological tests, the probabilities of finding oil at these three sites are 0.30,0.15, and 0.20, respectively. The presence of oil at any one of the sites is presumed to be independent of the presence of oil at any of the other sites 4. a) What is the probability of finding oil at all three of the sites? b) What is the probability of not finding oil at any of the sites? c) What event would be the complement of finding oil at all three sites? (Note this question is looking for an answer in words, not a number.) d) What event would be the complement of not finding oil at any of the sites? (This question is also looking for an answer in words, not a number.)

Explanation / Answer

a) probability of finding oll in all 3 of the sites =0.30*0.15*0.20=0.009

b) probability of not finding oil in any of these sites =(1-0.3)*(1-0.15)*(1-0.20)=0.476

c)that events is not finding oil in at least one of the sites.

d) that event is finding oil in at least one of these sites

please revert for any clarification required.

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