Question

What is the probability that a card picked at random from a 52-card deck of playing cards is a club or a jack?

Answer 1

Use this,
P(A or B) = P(A) + P(B) - P(A and B)
There are 13 clubs and 4 jacks in a 52-card deck. There is only one card that is both a jack and a club.

Answer 2

(13+3)/52

Answer 3

so the answer is 4/13

Answer 4

Yes.

Answer 5

Thanks @robtobey