College Mathematics
posted by slomomo .
This is a repost. I posted a question 2 days ago and the response was wrong. The question was on Probability. The question was One card is selected from a deck of playing cards. Determine the probability of selecting a jack OR a club. use this rule P(A or B) = P(A) + P(B)  P(A and B)

There are 13 clubs and then 3 jacks.
16/52
Using the rule P(J) = 4/52
P(C) = 13/52
P(C + J) = 1/52 the Jack of Clubs 
P(jack or club)= pr(jack)+Prob(club)Prob(both)
= 4/52+13/521/52
check that.