document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317048>Question 317048</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2. Thirty-eight percent of people in the United States have type O+ blood. \r<BR>\n" );
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document.write( "a. If you randomly select five Americans and ask them if their blood type is O+, what is the probability that exactly 3 will have blood type O+?<BR>\n" );
document.write( "(You MUST use the binominal formula) \r<BR>\n" );
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document.write( "b. If 5 Americans are selected at random, find the probability that 1 or less Americans will have O+ blood type.<BR>\n" );
document.write( "(You MUST use the binomial formula)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226986 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=226986\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2. Thirty-eight percent of people in the United States have type O+ blood.<BR>\n" );
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document.write( "a. If you randomly select five Americans and ask them if their blood type is O+, what is the probability that exactly 3 will have blood type O+?<BR>\n" );
document.write( "(You MUST use the binominal formula)<BR>\n" );
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document.write( "n = 5 ; p = 0.38<BR>\n" );
document.write( "P(x=3) = 5C3*(0.38)^3*(0.62)^2 = 0.2109<BR>\n" );
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document.write( "b. If 5 Americans are selected at random, find the probability that 1 or less Americans will have O+ blood type.<BR>\n" );
document.write( "(You MUST use the binomial formula)<BR>\n" );
document.write( "(x = 0 or 1) = 5C0(0.38)^0(0.62)^5 + 5C1(0.38)*(0.62)4 <BR>\n" );
document.write( "= 0.3724<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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