document.write( "Question 914933: In the biathlon event of the Olympic Games, a participant skis cross-country and on four intermittent occasions stops at a rifle range and shoots a set of five shots. If the center of the target is hit, no penalty points are assessed. If a particular man has a history of hitting the center of the target with 81% of his shots, what is the probability of the following. (Give your answers correct to three decimal places.)
\n" ); document.write( "(a) He will hit the center of the target with all five of his next set of five shots.
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\n" ); document.write( "\n" ); document.write( "(b) He will hit the center of the target with at least four of his next set of five shots. (Assume independence.)
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Algebra.Com's Answer #555352 by ewatrrr(24785)\"\" \"About 
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p(hit) .81, n = 5
\n" ); document.write( "a) P(x=5) = binompdf(5, .81,5) 0r .81^5
\n" ); document.write( "b) P(x ≤ 4) = binomcdf(5, .81, 4) Using TI
\n" ); document.write( "0r P = P(0) + P(1) + P(2) + P(3) + P(4)
\n" ); document.write( "where:
\n" ); document.write( "\"P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+\"
\n" ); document.write( "p and q are the probabilities of success and failure respectively.
\n" ); document.write( "In this case p = .81 & q = .19, n = 5
\n" ); document.write( "\"nCx+=+%28n%21%29%2Fx%21%28n+-+x%29%21%29\"
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