document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=911665>Question 911665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A study reported the prevalence of asthma is 30% in children 2-6 years of age. If 12 children were analyzed <BR>\n" );
document.write( "How many children would be expected to meet the criteria for asthma?<BR>\n" );
document.write( "What is the probability that at least 3 are asthmatic? <BR>\n" );
document.write( "What is the probability that exactly 3 are asthmatic?<BR>\n" );
document.write( "how do I figure this out? <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #553272 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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/cgi-bin/show-face.mpl?user=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=553272\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(asthma) = .30, n = 12<BR>\n" );
document.write( "P(x &#8805; 3) = 1 - P(x &#8804; 2) = 1 - binomcdf(12, .30,2)  Using TI Calculator<BR>\n" );
document.write( "P(x = 3) = binompdf(12, .30,3)  Using TI Calculator<BR>\n" );
document.write( "by Hand:<BR>\n" );
document.write( "Using <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+ ALIGN=MIDDLE  ALT=\"P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "p and q are the probabilities of success and failure respectively. <BR>\n" );
document.write( "In this case p= .30 , q = .70, n = 12 <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=nCx+=+%28n%21%29%2Fx%21%28n+-+x%29%21%29 ALIGN=MIDDLE  ALT=\"nCx+=+%28n%21%29%2Fx%21%28n+-+x%29%21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "for ex:<BR>\n" );
document.write( "P(x = 3) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+%28x%29=+highlight_green%2816C3%29%28.30%5E3%29%28.70%29%5E%289%29+ ALIGN=MIDDLE  ALT=\"P+%28x%29=+highlight_green%2816C3%29%28.30%5E3%29%28.70%29%5E%289%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );