document.write( "Question 878961: An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $415,000. If only natural gas is hit, the income will be $135,000. If nothing is hit, there will be no income. If the probability of hitting oil is 1/40 and if the probability of hitting gas is 1/20, what is the expectation for the drilling company?
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Algebra.Com's Answer #530420 by ewatrrr(24785) $\"\"$ $\"About$

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E = (1/40)$390,000 + (2/40)$110,000 - (37/40)$25,000 \n" ); document.write( "

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