document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948130>Question 948130</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Joey has a 97% chance of catching the early train to work each morning. What is the probability that he misses the train at least once in twenty mornings? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578650 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=578650\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Probability he catches the train 20 times in a row: <BR>\n" );
document.write( "P(catches all 20) = (0.97)^20 = 0.54379\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "probability he misses at least one train: <BR>\n" );
document.write( "P(misses at least one) = 1-P(catches all 20) = 1-0.54379 = 0.45621\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Answer: 0.45621 or 45.621% (rough approximation) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );