The chance is 2 in 5.
Marbles in a bag probabilitty.
P first red 1 3 after selecting the first marble 11 marbles are left in the bag.
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This math education video demonstrates how to calculate the probability of removing colored marbles from a bag.
So the next time.
Thanks hello rubies.
The probability of the first marble selected being red is the same as before 1 3 since total number of marbles and number of red marbles is the same.
2 blue and 3 red marbles are in a bag.
Marbles in a bag.
Solution there are 5 in total 4 are blue so 4 5 or80 is it right.
4 are blue and 1 is red.
4 are blue and 1 is red.
If we got a blue marble before then the chance of a blue marble.
Or is the probability equal.
What are the chances of getting a blue marble.
There are 5 marbles in a bag.
Bag b has 5 red marbles and 95 blue marbles.
Say i have 2 bags with 100 marbles in each.
If i pull out marbles 1 at a time from each bag simultaneously from which bag am i more likely to pull out all its red marbles first.
But after taking one out the chances change.
What is the probability that a blue marble gets picked.
Bag a has 1 red marble and 99 blue marbles.
Further if we assume that the first marble selected was red then 3 red marbles are left in the bag.