Question

2.
Find the probability of drawing an Ace from the pack of cards.​

Answer 1

There are four aces in a deck of 52 cards, so the probability of drawing an ace is 4/52 = 1/13

Then, there are 13 spades in a deck, so the probability of drawing a spade is 13/52 or 1/4

But, since one of those aces is also a spade, we need to subtract that out so we're not counting it twice.

So,

4/52 + 13/52 − 1/52 = 16/52 = 4/13