Which describes independent events?

Spinning two fours on a spinner divided into four numbered sections.

Selecting two kings from a standard deck of cards by choosing a card at random, placing it in your pocket, then choosing the second card.

Selecting two green marbles by choosing one from a bag at random, giving the first to a friend, then choosing another.

Selecting the names of two siblings by choosing slips of paper from a hat at random, pinning the selected slip on a bulletin board, and then selecting another.

Question

Which describes independent events?

 Spinning two fours on a spinner divided into four numbered sections.

 Selecting two kings from a standard deck of cards by choosing a card at random, placing it in your pocket, then choosing the second card.

 Selecting two green marbles by choosing one from a bag at random, giving the first to a friend, then choosing another.

 Selecting the names of two siblings by choosing slips of paper from a hat at random, pinning the selected slip on a bulletin board, and then selecting another.

agreene · Answer

What do you think is meant by independent events?
Thinking about that should make this question answerable.

anonymous · Answer

i would go with 
 Spinning two fours on a spinner divided into four numbered sections.

anonymous · Answer

ok

anonymous · Answer

the others are all done without replacement

anonymous · Answer

thanks

anonymous · Answer

yw

agreene · Answer

yes, that is correct.
But knowing that independent events are situations where the 2nd attempt is not altered by the first (what satellite73 descired as replacement) is more important since you will have similar questions in the future.