document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=870416>Question 870416</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 24. Suppose that a statistics class is being given an 8 question multiple choice quiz; there are 4 choices for each question with only<BR>\n" );
document.write( "1 correct answer. If I. M. Lucky guesses on each question, what is the probability that he gets at most 4 questions correct?<BR>\n" );
document.write( "(A) 0.03 (B) 0.09 (C) 0.97 (D) 0.50 (E) 0.11 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #524838 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=524838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(correct) = .25,  n = 8<BR>\n" );
document.write( "P(x &#8804; 4 correct) = binomcdf(8, .25 , 4) = .9727  0r 97.27% chance<BR>\n" );
document.write( "Above shows the Use of the TI Caclulator<BR>\n" );
document.write( "One may use on-line calculators: recommend stattrek.com<BR>\n" );
document.write( "0r one can obtain answer 'by hand'<BR>\n" );
document.write( "<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(x &#8804; 4 correct) = P(x=0) + P(x=1) + P(x=2) + P(x=3) + P(x = 4)<BR>\n" );
document.write( "P(x=0) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288C0%29%28.25%5E0%29%28.75%29%5E%288%29+ ALIGN=MIDDLE  ALT=\"highlight_green%288C0%29%28.25%5E0%29%28.75%29%5E%288%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "P(x=1) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288C1%29%28.25%5E1%29%28.75%29%5E%287%29+ ALIGN=MIDDLE  ALT=\"highlight_green%288C1%29%28.25%5E1%29%28.75%29%5E%287%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "P(x=2) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288C2%29%28.25%5E2%29%28.75%29%5E%286%29+ ALIGN=MIDDLE  ALT=\"highlight_green%288C2%29%28.25%5E2%29%28.75%29%5E%286%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "P(x=3) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288C3%29%28.25%5E3%29%28.75%29%5E%285%29+ ALIGN=MIDDLE  ALT=\"highlight_green%288C3%29%28.25%5E3%29%28.75%29%5E%285%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "P(x=4) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288C4%29%28.25%5E4%29%28.75%29%5E%284%29+ ALIGN=MIDDLE  ALT=\"highlight_green%288C4%29%28.25%5E4%29%28.75%29%5E%284%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "for cumulative Probabilities, recommend Calculator </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );