A bag contains 5 red marbles, 10 green marbles, 7 yellow marbles. If one marble is drawn from the bag then replaced, what is the probability of drawing a red marble then a yellow marble?
In a number guessing game. You ask a person to guess a number from one 1 to 10. If the person makes a random guess, what is the probability their guess will be less than 6?
A bag contains 10 black marbles, 7 yellow marbles, 5 green marbles. If one marble is drawn from the bag but not replaced, what is the probability of drawing a black marble then a green marble?