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What is the probablility of picking a green marble at random from a box that contains only 11 blue marbles?
The probability of picking a green marble from a box that only contains blue marbles is zero.
What is the probability of not picking green if there is 10 blue 5 stripped 8 green 1 yellow 1 black?
The answer depends on how many are picked,whether they are returned after picking and whether the picking is done at random. In a single random selection the probability is 17/25.
If you had ten marbles 3 blue and 7 red and you picked out three marbles at the same time what would be the odds of picking 2 blue marbles?
1 in 5.45 of picking at least 2 blue marbles any 2 from 3 is 3 correct picks =3X7(red)=21 of 2 blue only 1 pick of 3 blue only any 3 from 10=120 120/22=5.45
A deck of cards has 3 blue 4 black and 6 purple You pick 2 cards from the deck cards are not returned to the deck after they are picked whats the probability that two blue are picked?
First you have 3 blues out of 13 cards, so the first card has probability 3/13. Then you have 2 blues out of 12 cards, so the second card has probability 2/12 or 1/6. The probability of both being blue is the product of these probabilities: P(two blues) = P(first blue) * P(second blue) = (3/13) * (1/6) = 3/78 or 1/26
What are the possible outcomes when 2 discs are drawn from a bag containing 10 red and 5 blue discs?
2 red 1 red and 1 blue or 2 blue.
