[" playing cards.Find the probability that both the cards are black."],[" A box of oranges is inspected by examining three randomly selected oranges "],[" drawn without replacement.If all the three oranges are good,the box is approved "],[" for sale,otherwise,it is rejected.Find the probability that a box containing Is "15],[" for sale,otherwise,it is rejected.Find the probability that a box containing "15" ."],[" oranges out of which "12" are good and "3" are bad ones will be approved for sale."]