# PROBABILITY

One letter is selected at random from the word ‘MATHEMATICS’. What is probability of selecting a T?
Three coins are tossed at the same time. What is the probability of getting a head and two tails?
A ball is randomly selected from a bag containing 4 red balls, 5 green balls and 6 black balls. The first ball is replaced and then a second ball is picked.
What is the probability of getting two red balls?
A ball is randomly selected from a bag containing 4 red balls, 5 green balls and 6 black balls. The first ball is replaced and then a second ball is picked.
What is the probability of getting a red ball and a green ball?
A ball is randomly selected from a bag containing 4 red balls, 5 green balls and 6 black balls. The first ball is replaced and then a second ball is picked.
What is the probability of getting at least one black ball?

A bag contains 7 yellow balls, 3 green balls and 2 white balls. A ball is drawn and is not replaced. A second ball is drawn.
What is the probability of getting two yellow balls?

A bag contains 7 yellow balls, 3 green balls and 2 white balls. A ball is drawn and is not replaced. A second ball is drawn.
What is the probability of getting one green ball and one white ball?

A bag contains 7 yellow balls, 3 green balls and 2 white balls. A ball is drawn and is not replaced. A second ball is drawn.
What is the probability of getting two green balls?

A bag contains 7 yellow balls, 3 green balls and 2 white balls. A ball is drawn and is not replaced. A second ball is drawn.
What is the probability of getting two balls of the same colour?

When two dice are thrown simultaneously, what is the probability of obtaining the same number on both dice?
Cathy has 9 germanium plants. She knows that three will flower red, two will flower pink and four will flower white.
What is the probability that the first plant to flower will be pink?
Cathy has 9 germanium plants. She knows that three will flower red, two will flower pink and four will flower white.
What is the probability that one is red and the other is pink?
Cathy has 9 germanium plants. She knows that three will flower red, two will flower pink and four will flower white.
What is the probability that both are white?
Cathy has 9 germanium plants. She knows that three will flower red, two will flower pink and four will flower white.
What is the probability that at least one of them in pink?
Cathy has 9 germanium plants. She knows that three will flower red, two will flower pink and four will flower white.
What is the probability that the first three plants to flower are white?