Two straws are drawn at random with replacement from a packet containing 13 red and 11 blue straws. Find the probability that at least one of the straws is red.

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that both balls are red

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that both balls are red.

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that one of them is black and other is red.

Two balls are drawn at random with replacement from'a box containing 10 black and 8 red balls. Find the probability that both balls are red.

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that one of them is black and the other red

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that one of them is black and the other is red.