What is the probability that the marble will be green?

The probability that the marble is either red or green is 0.8.

What is the probability of drawing a marble that is not white?

You have a 3 out of 7 chance of drawing a non-gray marble. marble.

What is the probability that the marble will be of any Colour?

HENCE, the probability of getting any one colour is 1.

What is the probability of drawing a black marble from a bag?

It’s just that simple. By coincidence, the same as the chance of drawing the white marble in one draw. There are 20 total marbles, of which 5 are black and 4 are red. Assuming that marbles are chosen at random (no peeking), the probability of drawing a black marble at random is 5/20 or 1/4.

What is the probability of drawing a black marble?

A jar contains black and white marbles. Two marbles are chosen without replacement. The probability of selecting a black marble and then a white marble is 0.34, and the probability of selecting a black marble on the first draw is 0.47.

What is the probability to pick a red marble?

To pick a red marble first, you have a probability 5 10 . To pick another red marble, now you will have probability 4 9 (since no replacement). To pick a blue marble next, you have probability 5 8, and for another 4 7.

What is the probability of tossing three tails of marbles?

The probability of tossing no heads is only possible with the combination TTT. The probability of tossing three tails is equal to (1/2) (1/2) (1/2) = 1/8 Probability of tossing at least one head = 1 – 1/8 = 7/8 . A jar of marbles has 125 marbles in it. 25 are blue marbles, 65 are red marble, 15 are green marbles and 20 are yellow marbles.

How many green marbles do you need to get 9 blue marbles?

Therefore, we need to take at least 9 green marbles, which would mean 4 or less of the marbles would be blue (8 green and 5 blue would leave us with equal green and equal blue marbles, so it would have to be more than 8 green marbles, which gives us 9 green marbles). We can also solve this as an inequality.

How many marbles are in a jar of marbles?

A jar of marbles has 125 marbles in it. 25 are blue marbles, 65 are red marble, 15 are green marbles and 20 are yellow marbles. What is the probability that the first three marbles picked are green or blue? Probability of each event = (# green marbles + # blue marbles)/ Total # of Marbles