Question

Consider a standard deck of 52 playing cards.
If A={x:x is a spade or club card}, which of the following events is the complement of A?
{x:x is a black card}
{x:x is a heart card or diamond card}
{x:x is a club card or a heart card}
{x:x is a spade card}

Answer 1

Complement means everything but a club or spade card
So your answer would be heart card or diamond.