The probability that a card drawn from a pack of 52 cards will be a diamond or a king is:

Question: The probability that a card drawn from a pack of 52 cards will be a diamond or a king is:

Solution:
Here, n(S) = 52
There are 13 cards of diamonds (including one king), and there are three more kings.

Let E = the event of getting a diamond or a king
Then, n(E) = (13 + 3) = 16

∴ P(E) = n(E)/n(S)
= 16/52
= 4/13