document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1147246>Question 1147246</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A high school baseball player has a 0.272 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 2 hits in the game? Round your answer to 3 decimal places.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #768584 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=768584\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Straightforward binomial probability calculations -- although very cumbersome.<br><BR>\n" );
document.write( "At least 2 hits in 5 at bats means NOT 0 or 1 hits.  So<br><BR>\n" );
document.write( "1 - ((P(0 hits)+P(1 hit))<br><BR>\n" );
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document.write( "A good scientific calculator will do all the ugly computations for you.<br><BR>\n" );
document.write( "On the TI-83, binomcdf(a,b,c) will calculate the cumulative probability of AT MOST c successes in a trials if the probability of success on each trial is b.<br><BR>\n" );
document.write( "To find binomcdf, press 2nd-VARS (DISTR) and scroll down to A:binomcdf<br><BR>\n" );
document.write( "Again, since you want the probability of AT LEAST 2 hits, you want to calculate 1 minus the probability of AT MOST 1 hit:<br><BR>\n" );
document.write( "1 - binomcdf(5,.272,1) </SPAN>\n" );
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