I am just looking for help with these three. Any help is appreciated help.
For the second one I got 8/13
and the third one, I'm not sure if I'm right but I got:
P (A or B)=17/45
P (B or C)= 20/45
P (D or C)= 22/45
Second one
We have 13 cards
P ( 5 or D ) = P(5) + P(D) - P (5 and D)
2/13 + 7/13 - 1/13
8/13
Last one
P ( A or B) = P(A) + P (B) - P (A ∩ B)
= 8/45 + 11/45 - 2/45
= 17/45
P(B or C) = P(B) + P(C) - P(B ∩C)
= 11/45 + 10/45 - 1/45
= 20/45
P (C or D) = P(C) + P (D) - P (C ∩ D)
= 10/45 + 12/45 - 0/45
= 22/45