Consider a box that contains 4 marbles of different colors (red, yellow, blue and green.) If two marbles are randomly selected, what is the probability that they are different colors without replacements?

A bag of marbles contains 6 blue glass marbles, 5 yellow glass marbles, 19 blue stone marbles, and 3 yellow stone marbles. What is the probability of selecting a marble and having that marble be either a blue marble or a stone marble?

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. If two marbles are randomly drawn from the bag without replacement, what is the probability that both marbles are blue?

A box contains 2 white and 3 blue identical balls. If two balls are picked at random one after the other without replacement, what is the probability of picking two balls of different colours?

In a box there are 3 red, 4 blue, and 5 white marbles.  If 3 marbles are selected at random and the colors are noted, find the probability that all are white given that all are the same color.

A bag contains 3 red marbles and 4 blue marbles. If a marble is selected at random from the bag, what is the probability that it is red?

There are two boxes, the first contains 5 white and 5 black balls and the second contains 7 white and 3 black balls. A ball will be selected from each box, randomly. What is the probability that the two selected balls are white?

a bag contains 3 black, 4 red, 3 yellow, and 2 green marbles. what is the probability of drawing a black and then a red marble out of the bag without replacing the black marble before drawing a red marble?

Suppose a box has 40 marbles with 36 red and 4 black. If two marbles are selected without replacement. What is the probability that they will be different colors?

A bag contains 6 blue,3 red and 2 black balls. If 2balls are drawn at random fromthe bag, not replaced and thenanother ball is drawn. Whatis the probability of drawing2 blue balls and 1 black ball?