Math Final

Consider a game in which a player rolls one die. If an odd number comes​ up, the player wins the number of dollars showing on the die. If an even number comes​ up, the player loses the number of dollars showing on the die. Calculate the expected value for this game. Is the game​ fair? (Assume that there is no cost to play the​ game.)

-.5, not fair

10/nonface card

1/10

King/face card

1/3

Queen/Face card

1/3

What is the probability of getting either a heart or a king when drawing a single card from a deck of 52​ cards? What is the probability that the card is either a heart or a king​? four thirteenths

4/13

Specify the number of ways to perform the task described. Give your answers using​ P(n, r) or​ C(n, r) notation. Eighteen magazines are competing for four identical awards for excellence in journalism. No magazine can receive more than one award. The number of ways to perform the task is Upper C left parenthesis 18 comma 4 right parenthesisC(18,4).

C(18,4).