document.write( "Question 1037660: 8% of people in a city eligible to donate blood actually do. Randomly you select 4 eligible blood donors and ask them if they donate blood.
\n" ); document.write( "n=4, p= 0.08 and q=.92\r
\n" ); document.write( "\n" ); document.write( "x | P(x)
\n" ); document.write( "0 | 0.716
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\n" ); document.write( "\n" ); document.write( "I thought I was putting the numbers into the equation correctly but apparently I am not. I did 1(.08)^1 x (.92)^4 and got 0.057 but the correct answer is 0.249. How do I put the numbers into the formula correctly? \n" ); document.write( "

Algebra.Com's Answer #652427 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
You didn't use the combination multiplier C(4,1) (which is 4) and one of your exponents is incorrect.
\n" ); document.write( " $\"P%28X%29=C%284%2CX%29%280.08%29%5EX%2A%280.92%29%5E%284-X%29\"$
\n" ); document.write( " $\"P%281%29=C%284%2C1%29%280.08%29%5E1%2A%280.92%29%5E%284-1%29=4%2A0.08%2A0.779=0.249\"$ \r
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