document.write( "Question 1144117: The incidence of occupational disease in an industry is such that the human have a 20% chance of suffering from it. What is the probability that out of 6 women.
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Algebra.Com's Answer #765123 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The general solution is  THIS :\r\n" );
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document.write( "     P(exactly n will get the disease) =   for n = 0, 1, 2, 3, 4, 5, 6.      (1)\r\n" );
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document.write( "(a)  P(not more than 2 will catch the disease) = P(0) + P(1) + P(2).\r\n" );
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document.write( "     At this point, use the formula (1).  Calculate  P(0), P(1)  and P(2); then add.\r\n" );
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document.write( "(b)  P(4 or more will catch the disease) = P(4) + P(5) + P(6).\r\n" );
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document.write( "     At this point, use the formula (1), again.  Calculate  P(4), P(5)  and P(6); then add.\r\n" );
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