document.write( "Question 1203339: Topic : Discrete Random Variable (Geometric Distribution)
\n" ); document.write( "In a particular country, 18% of adults wear contact lenses. Adults are randomly selected and interviewed once at a time. Find the probability that the first adult who wears contact lenses is:
\n" ); document.write( "(a) One of the first 15 interviewed
\n" ); document.write( "(b) Not one of the first nine interviewed \n" ); document.write( "

Algebra.Com's Answer #838819 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Topic : Discrete Random Variable (Geometric Distribution)
\n" ); document.write( "In a particular country, 18% of adults wear contact lenses.
\n" ); document.write( "Adults are randomly selected and interviewed once at a time.
\n" ); document.write( "Find the probability that the first adult who wears contact lenses is:
\n" ); document.write( "(a) One of the first 15 interviewed
\n" ); document.write( "(b) Not one of the first nine interviewed
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document.write( "(a) It is a typical binomial distribution probability.\r\n" );
document.write( "    The number of trials is 15; the number of success is 1 (one);\r\n" );
document.write( "    the probability of success at each individual trial is 0.18.\r\n" );
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document.write( "    You may use a standard probability formula\r\n" );
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document.write( "       P =  =  = 0.0925  (rounded).    ANSWER\r\n" );
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document.write( "(b) The  ANSWER  is P =  =  = 0.1676  (rounded).   \r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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