The four players in a bridge game are each dealt 13 cards.

ST 701 Week Seven Notes MaLyn Lawhorn September 26, 2017 and September 28, 2017 Quick Note From Last Class There are two different ways to calculate E[g(x)] and those are R ▯ E[g(x)] = g(x)f (x)dx X R ▯ Y = g(x); then E[Y ] = yfY(y)dy Moments th n th For special g functions, we define the nmoment of X to be E[X ], n = 1;2;▯▯▯ and n central moment E[(X ▯ E(X)) ]. Moments give us information about the distribution. Examples: ▯ 1st moment, E[X], is the mean, ▯ ▯ 2nd central moment, E[(X ▯ E[X]) ], is the variance We are usually only interested in low-or