Two cards are drawn in succession without replacement from a standard deck of 52 playing cards. What is the probability that the first card drawn was a diamond given that the second card drawn was not a diamond? (Round your answer to four decimal places.)
\n" );
document.write( "i cant seem to get this problem right as simple as it sounds!!!!!!
\n" );
document.write( "\r\n" );
document.write( "There are 13 diamonds and 39 non-diamonds in a deck of 52.\r\n" );
document.write( "\r\n" );
document.write( "The formula for a conditional probability is\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "where 
means \"A given B\"\r\n" );
document.write( "\r\n" );
document.write( "Let A be \"the first card was a diamond\"\r\n" );
document.write( "Let B be \"the second card was a non-diamond\"\r\n" );
document.write( "\r\n" );
document.write( "The probability on the left of the formula is a CONDITIONAL \r\n" );
document.write( "probability, but the two probabilities on the right are NOT. \r\n" );
document.write( "We are not to assume we are given anything when we calculate \r\n" );
document.write( "the right side.\r\n" );
document.write( "\r\n" );
document.write( "\"AND\" indicates that we are to multiply and \"OR\" indicates\r\n" );
document.write( "that we are to add.\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "Going back to the conditional probability formula:\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "To ask me anything you don't understand about this problem, email\r\n" );
document.write( "me at AnlytcPhil@aol.com, or ask me in your thank-you note.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" );
document.write( "![\"\"](\"/images/stars/stars-13.gif\")
