Oh yeah has a bag of 15 marbles that are two black marbles five blue three red three green and two purple what is the probability should really choose the Blue marble replaces it and chooses a purple marble

1 answer

The probability of choosing a blue marble on the first draw is 5/15 = 1/3.
Since the marble is replaced, the probability of choosing a purple marble on the second draw is also 2/15.

Therefore, the overall probability of choosing a blue marble and then a purple marble is (1/3) * (2/15) = 2/45 or approximately 0.0444 or 4.44%.