Two events are independent if the first event has no effect on the second event.

Question

Two events are dependent if the result of one event has an effect on the other event.

One of the most common examples of these are situations involving picking 2 items from a group of items.

If you put the item back after the first pick, it's going to be independent. It doesn't matter what you picked because you put it back and it will have no effect on the second pick. The probabilities for the first pull are the same as for the second.

If you don't put the item back, it is going to change the probabilities. You can't pick the item that has already been picked. There are fewer items to pick from. Thus it represents a dependent event.

Answer 1

Yes.