document.write( "Question 883195: What is the probability of drawing a queen OR a black card from a standard deck of playing cards? \n" ); document.write( "
Algebra.Com's Answer #533374 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! Note that this is a conditional probability(Pr) problem using OR which requires us to add Pr's \n" ); document.write( "There are 4 queens in a standard deck of cards, therefore \n" ); document.write( "Pr of drawing a queen is 4/52 = 1/13 \n" ); document.write( "Pr of drawing a black card = 26/52 = 1/2 \n" ); document.write( "now, \n" ); document.write( "Pr of drawing a queen or a black card = 1/13 + 1/2 = 0.576923077 \n" ); document.write( " \n" ); document.write( " |