where i is the i th entry in . Thus 28 Discrete random variables P(Xi = 0) = X : i=T ph()qnh() = Xn1 h=0

where ωi is the i th entry in ω. Thus 28 Discrete random variables P(Xi = 0) =

X

ω: ωi=T ph(ω)qn−h(ω)

=

Xn−1 h=0 X

ω: ωi=T, h(ω)=h phqn−h =

Xn−1 h=0



n − 1 h



phqn−h

= q(p + q)n−1 = q and P(Xi = 1) = 1 − P(Xi = 0) = p.