a bag contains 6 black and 5 white balls . one ball is drawn at random . what is the probability that the ball drawn is white ?
"let number of balls = ( 6 + 5 ) = 11 . number of white balls = 5 p ( drawing a white ball ) = 5 / 11 option b ."
divide(add(divide(divide(factorial(5), factorial(subtract(5, const_2))), factorial(const_2)), divide(divide(factorial(6), factorial(subtract(6, const_2))), factorial(const_2))), divide(divide(factorial(add(6, 5)), factorial(subtract(add(6, 5), const_2))), factorial(const_2)))