Assume a 52 deck of cards. Values A = 1, 2=2 ...... 10 = 10, J = 11, Q = 12 , K = 13.
So the expected value of a randomly picked card is 364/52=7
Draw three cards and remove the lowest value of these three cards. Now without replacement pick a new card. What will then be the expected value of these three cards?
What is the expected value of the lowest card you picked up?
What is the expected value of the card you pick to replace the lowest card with?
I am having a hard time with these questions. They are not for an exam or anything, just some brainteasers I found online.