document.write( "Question 422448: If 60% of the population has brown eyes and we randomly select 12 people, what is the probability that exactly 4 of them have brown eyes \n" ); document.write( "
Algebra.Com's Answer #294877 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "Note: The probability of x successes in n trials is:
\n" ); document.write( "P = nCx* \"p%5Ex%2Aq%5E%28n-x%29\" where p and q are the probabilities of success and failure respectively.
\n" ); document.write( "In this case p =.6 and q = .4
\n" ); document.write( "nCx = \"n%21%2F%28x%21%28n-x%29%21%29\"
\n" ); document.write( "60% of the population has brown eyes and we randomly select 12 people
\n" ); document.write( "P(exactly 4 of them have brown eyes)= 495(.6)^4(.4)^8 = .042 \n" ); document.write( "
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