document.write( "Question 971709: When Joe bowls, he can get a strike 60% of the time. What is the probability Joe will get at least 2 strikes out of 5 tries? \n" ); document.write( "
Algebra.Com's Answer #594105 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! There are 5C2 10 ways he can get 2 strikes.\r \n" ); document.write( "\n" ); document.write( "The probability he gets 2 strikes \n" ); document.write( "0.6*0.6*0.2*0.2*0.2\r \n" ); document.write( "\n" ); document.write( "That is just if he gets the first two. \n" ); document.write( "He can get ANY two, so that is where the 10 come from\r \n" ); document.write( "\n" ); document.write( "1-3, 1-4, 1-5 \n" ); document.write( "2-3,2-4,2-5 \n" ); document.write( "3-4,3,5,4-5 are the other 9\r \n" ); document.write( "\n" ); document.write( "The 5 term product is 0.02304. Multiply it by 10, and the probability is 0.2304\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |