It means both 
Consider both neon and ming ge are two independent variables, and
the probability each will say yes is 1/2
So the sample size will be yes yes, yes no, no yes, no no.
Consider the probability that one will say yes given the other will
say yes to premier membership, and that I will apply for premier
membership if both say yes, what is the probability that I will get
a premier membership, considering all other factors constant?
