Question

Suppose you have a deck of 52 cards. Let:

A: draw a 7
B: draw a diamond

Find the probability of A U B and write as a fraction​

Answer 1

16/52

Explanation:

A U B= A + B - A ∩ B

A= 4/52

B= 13/52

A∩B= 1/52 (it's 1/52 because there is only one 7 of diamonds in the deck)

4/52+13/52-1/52= 16/52