Consider the categorical variable x, restricted to the set {0, 1}, with probability distribution px,y given in table 1. What is the probability distribution for x?
A) px(0) = 0.2, px(1) = 0.8
B) px(0) = 0.8, px(1) = 0.2
C) px(0) = 0.5, px(1) = 0.5
D) px(0) = 0.3, px(1) = 0.7