document.write( "Question 1099690: The probability that a person, living in Minneapolis owns a cat is
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document.write( "estimated to be 0.141. Find the probability that the ninth person
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document.write( "randomly interviewed in Minneapolis is the eighth one to own a cat. \n" );
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Algebra.Com's Answer #714190 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "That's a binomial probability problem \r\n" ); document.write( "\r\n" ); document.write( "where:\r\n" ); document.write( "\r\n" ); document.write( "1. Exactly 7 of the first 8 people interviewed had a cat. \r\n" ); document.write( "\r\n" ); document.write( "and\r\n" ); document.write( "\r\n" ); document.write( "2. The 9th person interviewed owned a cat.\r\n" ); document.write( "\r\n" ); document.write( "Probability that exactly 7 of the first 8 people interviewed\r\n" ); document.write( "had a cat\r\n" ); document.write( "\r\n" ); document.write( "n = 8\r\n" ); document.write( "p = 0.141\r\n" ); document.write( "x = 7\r\n" ); document.write( "\r\n" ); document.write( "0.0000076140713\r\n" ); document.write( "\r\n" ); document.write( "Probability that the 9th person interviewed had a cat:\r\n" ); document.write( "\r\n" ); document.write( "That's 0.141\r\n" ); document.write( "\r\n" ); document.write( "Since it's \"and\" we multiply the probabilities:\r\n" ); document.write( "\r\n" ); document.write( "Answer (0.0000076140713)(0.141) = 0.000001073584053\r\n" ); document.write( "\r\n" ); document.write( "It's extremely unlikely!\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |