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October 20, 2014

Homework Help: ALGEBRA

Posted by Danny on Thursday, May 24, 2012 at 9:26pm.

An oil-drilling company knows that it costs $28,000 to sink a test well. If oil is hit, the income for the drilling company will be $445,000. If only natural gas is hit, the income will be $145,000. If nothing is hit, there will be no income. If the probability of hitting oil is $$ \dfrac{1}{40} $$ and if the probability of hitting gas is $$ \dfrac{1}{20} $$, what is the expectation for the drilling company?

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