One card is drawn at random from a well-shuffled standard deck of 52 cards

MATHEMATICS · Multi-part · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions

Problem

One card is drawn at random from a well-shuffled standard deck of 52 cards. Define the random variable

X

by (a) Find

E(X)

. (b) Given that the card drawn is a face card, find

E\bigl(X\mid \text{face card}\bigr)