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Two out of nine. 2:9.

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Q: If A box contains 4 blue chips and 5 black chips and 2 chips are drawn at random with replacement what is the probability that both will be blue?
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Related questions

What is the probability of getting a black 4 out of a 52 deck of cards?

If you pick enough cards, without replacement, the probability is 1. The probability for a single random draw is 1/26.


If A box contains three black balls and four gold balls Two balls are randomly drawn in succession from the box If there is no replacement what is the probability that both balls are black?

(3/7)*(2/7)=(6/49) You have a 6 out of 49 probability.


If A jar contains 5 yellow marbles 16 green marbles and 8 black marbles If one marble is selected at random what is the probability that it is not green?

1 in 52


What is the probability of picking a black ace?

The probability of picking a black ace in one random draw from a normal pack of playing cards is 1/26.


A jar contains 40 red marbles and 10 black marbles If you take a random sample of one marble from this jar. What is the probability that the marble will be red?

80% chance, Or 40/50


A box contains 7 red balls and 11 black balls two balls are taken out one after the other without replacement what is the probability that both balls are black?

11/18 x 10/17 = .359


What is the probability of drawing three black cards one at a time with replacement from a standard deck of 52 cards?

The probability of drawing three black cards one at a time with replacement from a standard deck of 52 cards is 1/3x1/2x26/52, which is 0.833.


What is the probability of drawing 3 black cards (spades or clubs) from a standard 52-card deck?

The probability of drawing three black cards from a standard pack depends on:whether the cards are drawn at random,whether or not the drawn cards are replaced before the next card is drawn,whether the probability that is required is that three black cards are drawn after however many draws, or that three black cards are drawn in a sequence at some stage - but not necessarily the first three, or that the first three cards cards that are drawn are black.There is no information on any of these and so it is not possible to be certain about the answer.The probability of drawing three black cards, in three random draws - without replacement - from a standard deck, is 0.1176 approx.


What is the probability of choosing 3 red balls and 2 black balls out of a bag which contains 5 red balls 2 green balls and 4 black balls?

If you draw enough balls, without replacement, the probability is 1.The answer depends onhow many balls are drawn, andwhether or not they are replaced.Unfortunately, your question gives no information on these matters.


Suppose one in every four cars is black and black SUVs amount to one tenth of all cars What is the probability that a black car picked at random is an SUV?

Suppose there are only 20 cars in the world: 5 will be black and 2 will be black SUVs, so if you pick a black car at random there are 2 chances out of 5 that it will be an SUV, ie probability of 0.4 or 40%


A bag contains 7 red 5 blue 4 white and 4 black balls find the probability that a ball drawn at random is red or white?

It is (7+4)/(7+5+4+4) = 11/20


A box contains 4 red balls and 2 black balls Three balls are drawn with replacement Let the random variable X be the number of red balls obtained?

x X over 2 = 2