document.write( "Question 329484: Of all the stores opened by a company, 90% survive. Assume that each store's chance of survival is independent of the others. What is the probability that at least 8 out of 10 stores opened will survive? please show all work, thanks \n" ); document.write( "

Algebra.Com's Answer #236182 by Fombitz(32388) $\"\"$ $\"About$

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10 survive = $\"1%280.9%29%5E10%280.1%29%5E0=0.3487\"$
\n" ); document.write( "9 survive = $\"10%280.9%29%5E9%280.1%29%5E1=0.3874\"$
\n" ); document.write( "8 survive = $\"45%280.9%29%5E8%280.1%29%5E2=0.1937\"$
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\n" ); document.write( "P(at least 8)= $\"P%288%29%2BP%289%29%2BP%2810%29=0.9298\"$ \n" ); document.write( "

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