document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194232>Question 1194232</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Phone calls arrive at the rate of 54 per hour at a telephone operator desk.\r<BR>\n" );
document.write( "\n" );
document.write( "a) If no calls are currently being processed, what is the probability that the operator can take 4 minutes for personal time without being interrupted by a call? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826445 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=826445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> this is a Poisson distribution and the number is proportional to time.<BR>\n" );
document.write( "sho if 54/hour it is 0.9 per minute which is the parameter per minute or 3.6 for four minutes<BR>\n" );
document.write( "the probability is e^(-3.6)*3.6^0/0!=0.0273 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );