document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312814>Question 312814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having a problem with determinng discrete and continuous variables, and if they are binomial. if binomial give values for n and p. I have finished all the probabilty distribution problems and these are holding me up:\r<BR>\n" );
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document.write( "Number of times a head is flipped in 10 coin flips?<BR>\n" );
document.write( "I have discrete, binomial  n=10   p=.5\r<BR>\n" );
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document.write( "Time to complete a 30 question multiple choice test<BR>\n" );
document.write( "I have continuous\r<BR>\n" );
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document.write( "Number of correct answers on a 30 question multiple choice test for someone who randomly guesses each answer. There are 4 answer choices for each question.<BR>\n" );
document.write( "I have discrete, binomial  n=30    p=1/4\r<BR>\n" );
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document.write( "A woman buys a lottery ticket every week for which the probabilty of winning at all is 1/10. She continues to buy them until she has won 3 times. X=number of tickets she buys.<BR>\n" );
document.write( "I have continuous\r<BR>\n" );
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document.write( "If I have any wrong can you please explain what I did wrong? I appreciate it<BR>\n" );
document.write( "Kim </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223672 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=223672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A woman buys a lottery ticket every week for which the probabilty of winning at all is 1/10. She continues to buy them until she has won 3 times. X=number of tickets she buys.<BR>\n" );
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document.write( "You have that as continuous, which is wrong.  It can't be continuous because\r\n" );
document.write( "she cannot buy a fraction of a ticket.  When the random variable has to be an\r\n" );
document.write( "integer the distribution is discrete.  That one is discrete but is not binomial.\r\n" );
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document.write( "Edwin</PRE><BR>\n" );
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