document.write( "Question 804859: A researcher wants to conduct a genetic study using 12 randomly-selected volunteers. He has a group of 24 volunteers to choose from. 12 are males and 12 are females. What is the probability that the randomly-selected group will be all male OR all female? \n" ); document.write( "
Algebra.Com's Answer #484988 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A researcher wants to conduct a genetic study using 12 randomly-selected volunteers. He has a group of 24 volunteers to choose from. 12 are males and 12 are females. What is the probability that the randomly-selected group will be all male OR all female? \n" ); document.write( "------ \n" ); document.write( "# of ways to succeed:: 12C12 + 12C12 = 2 \n" ); document.write( "---- \n" ); document.write( "# of possible groups of 12:: 24C2 = 276 \n" ); document.write( "---- \n" ); document.write( "P(all male or all female) = 2/276 = 1/138 \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========================== \n" ); document.write( " |