The following table lists the populations and the breakdown of registered voters along party lines for three western states:
State Population Democrats Republicans
CO 5 million 35% 30%
NM 2 million 48% 32%
UT 3 million 20% 56%
If a person is randomly selected for a phone survey from one of these three states, and reveals that he/she is a registered Democrat, what is the probability that he/she is from Colorado?