document.write( "Question 813311: If the probability of hitting a target on a single shot is 0.8, what is the probability that in 4 shots you will hit the target two times? \n" ); document.write( "
Algebra.Com's Answer #489573 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= .8 & q = .2
\n" ); document.write( "nCx = \"n%21%2F%28x%21%28n-x%29%21%29\"
\n" ); document.write( "P(2 out of 4) = \"%284%21%2F2%212%21%29%28.8%29%5E2%28.2%29%5E2\" = .1536 \n" ); document.write( "
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