document.write( "Question 1043351: 30 percent of households say they would feel secure if they had​ $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had​ $50,000 in savings. Find the probability that the number that say they would feel secure is​ (a) exactly​ five, (b) more than​ five, and​ (c) at most five. \n" ); document.write( "
Algebra.Com's Answer #658521 by stanbon(75887)\"\" \"About 
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30 percent of households say they would feel secure if they had​ $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had​ $50,000 in savings.
\n" ); document.write( "Find the probability that the number that say they would feel secure is​
\n" ); document.write( "(a) exactly​ five:: p(x = 5) = 8C5*0.3^5*0.7^3 = binompdf(8,0.3,5) = 0.0467
\n" ); document.write( "(b) more than​ five::P(6<=x<=8) = 1 - binomcdf(8,0.3,5) = 0.0113
\n" ); document.write( "(c) at most five::P(0<=x<=5) = binomcdf(8,0.3,5) = 0.9887
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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