To calculate the probability of getting a blue marble first and then a red marble without replacement, we can first calculate the probability of drawing a blue marble first, which is 4/10, or 2/5.
After drawing a blue marble, there are now 9 marbles left in the jar, with 6 red and 3 blue. To calculate the probability of drawing a red marble next, we can use the conditional probability formula:
P(red|blue) = P(red and blue) / P(blue)
P(red and blue) = (4/10) * (6/9) = 4/15
Therefore, the probability of drawing a blue marble first and then a red marble without replacement is 4/15.
There are 10 marbles in a jar. 4 blues, 6 reds. What is the probability of getting blue and then red if they are not replaced after each pull?
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