A bag of marbles has 10 red, 8 blue, 4 green, and 2 yellow marbles. A marble is drawn from the bag and replaced. What is the expected number of green marbles out of 6,000 marbles?

1,000
2,000
4,000
5,000

The probability of drawing a green marble from the bag is 4/24 = 1/6.

Therefore, the expected number of green marbles out of 6,000 marbles is:
6,000 marbles * (1/6) = 1,000

So, the answer is 1,000.