document.write( "Question 1172335: A final year student after being interviewed at two companies, he assesses that his probability of getting an offer from company A is 0.8 and the probability that he gets offer from company B is 0.6. If, on the other hand he believes that the probability that he will get offers from both companies is 0.5. Obtain the probability that he will get
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Algebra.Com's Answer #797338 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "A final year student after being interviewed at two companies, he assesses that his probability of getting an offer
\n" ); document.write( "from company A is 0.8 and the probability that he gets offer from company B is 0.6. If, on the other hand he believes
\n" ); document.write( "that the probability that he will get offers from both companies is 0.5. Obtain the probability that he will get \r
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document.write( "(i)    at least one offer from these two companies\r\n" );
document.write( "(ii)   offer from neither company\r\n" );
document.write( "(iii)  offer from company A only \r\n" );
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document.write( "(i)   P = P(A) + P(B) - P(A and B) = 0.8 + 0.6 - 0.5 = 0.9.\r\n" );
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document.write( "(ii)  In this case, the probability is the COMPLEMENT to the probability which is just found  in (i)\r\n" );
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document.write( "       P' = 1 - P = 1 - 0.9 = 0.1.\r\n" );
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document.write( "(iii)  P = P(A) - P(A and B) = 0.8 - 0.5 = 0.3.\r\n" );
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