A student chooses a red marble from a Bag and Then chooses another red marble without replacing the first. is it independent or dependent ?

Question

Is this independent or dependent ? 

Answer 1

Let say you have 10 marbles in the bag. 5 are blue and 5 are red.

 

First draw: if you want a red marble, you have 5 out of 10 chances to get it.

 

Second draw: since you dont put the first red marble back, it is not accounted for. So when you reach in the bag, you only have 4 out 9 chances of getting another red marble. 

 

So we can see clearly that the outcome of the 1st draw affects the out come of the 2nd draw; and hence it is dependent

Answer 2

independent