document.write( "Question 1178440: Of the members of a Boy Scout troop, 15% have received the first aid merit badge. If 40 boy scouts are selected at random, find the probability that four or more will have the first aid merit badge?\r
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Algebra.Com's Answer #807678 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Of the members of a Boy Scout troop, 15% have received the first aid merit badge.
\n" ); document.write( "If 40 boy scouts are selected at random, find the probability that four or more
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document.write( "It is a binomial distribution probability problem.\r\n" );
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document.write( "    - number of trials        n =  40;\r\n" );
document.write( "    - number of success trial k >=  4;\r\n" );
document.write( "    - Probability of success on a single trial p = 0.15.\r\n" );
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document.write( "We need calculate  P(n = 40; k >= 4; p = 0.15).      \r\n" );
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document.write( "To facilitate calculations, I use an appropriate online (free of charge) calculator at this web-site \r\n" );
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document.write( "https://stattrek.com/online-calculator/binomial.aspx\r\n" );
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document.write( "It provides nice instructions  and  a convenient input and output for all relevant options/cases.\r\n" );
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document.write( "    P(n = 40; k >= 4; p = 0.15) = 0.869831,   or   86.9831%  (rounded).       ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see a variety similar solved problems, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Simple and simplest probability problems on Binomial distribution \r
\n" ); document.write( "\n" ); document.write( "    - Typical binomial distribution probability problems \r
\n" ); document.write( "\n" ); document.write( "    - How to calculate Binomial probabilities with Technology (using MS Excel) \r
\n" ); document.write( "\n" ); document.write( "    - Solving problems on Binomial distribution with Technology (using MS Excel) \r
\n" ); document.write( "\n" ); document.write( "    - Solving problems on Binomial distribution with Technology (using online solver) \r
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\n" ); document.write( "\n" ); document.write( "After reading these lessons, you will be able to solve such problems on your own, \r
\n" ); document.write( "\n" ); document.write( "which is your PRIMARY MAJOR GOAL visiting this forum (I believe).\r
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