Question

David picks a card at random.

​Without putting the first card back, he picks a second card at random.
​
​Are these two events dependent or independent?

Answer 1

dependent

Explanation:

This question assumes that we're working with a standard full deck of cards. There are 52 unique cards in such a deck.

If David picks a card at random and doesn't put it back, then the number of unique cards left in his deck is 51.

These two events are dependent because the withdrawal of 1 card changes the probability of drawing any other of these 51 cards