Let R be the event that a red card is drawn. There are two red suits of 13
cards each, so there are 26 ways of getting are red card. There are 52 cards
altogether, so the probability of getting a red card is
P(R) = 26
52
=
1
2
. http://www.math.ttu.edu/~drager/Classes/02Spring/m1430/anse3.pdf
