A bag contains 4 white marbles and 3 blue marbles. If a white marble is drawn and not put back, what is the probability of selecting another white marble?

3/6 = 1/2

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To find the probability of selecting another white marble, we need to consider the number of white marbles remaining in the bag and the total number of marbles remaining.

Initially, there are 4 white marbles and 3 blue marbles, so the total number of marbles is 4 + 3 = 7.

Now, suppose we draw a white marble without putting it back. After this, we will have 3 white marbles and 3 blue marbles left in the bag, making a total of 6 marbles remaining.

Therefore, the probability of selecting another white marble is given by the number of white marbles remaining (3) divided by the total number of marbles remaining (6).

So, the probability of selecting another white marble is 3/6, which simplifies to 1/2 or 0.5.

Therefore, the probability of selecting another white marble is 0.5 or 50%.