At the Homecoming Carnival, one of the games allows players to select a floating rubber ducky from a kiddie pool full of ducks. A code has been written on the bottom of each duck; the code gives the value of the prize won. There are 50 ducks in all – 2 have stars, 6 have circles, and 15 have squares. The rest of the ducks have no code.

All prizes are vouchers for the concession stand at the football game:

A duck with a star wins the player a $5.00 voucher.

A duck with a circle wins the player a $2.00 voucher.

A duck with a square wins the player a $1.00 voucher.

What is the probability of selecting a duck with a star?

What is the probability of selecting a duck with a circle?

What is the probability of selecting a duck with a square?

What is the probability of selecting a duck with nothing on the bottom?

The expected value of selecting a random rubber duckie from the kiddie pool is:

True/False: A player that plays the game just once can earn the expected value.

If the PTA charged $1each time the game is played, then the prize money is adjusted. The total money that the player would earn if the player selected a duck with a star is

If the PTA charged $1each time the game is played, then the prize money is adjusted. The total money that the player would earn if the player selected a duck with a circle is

If the PTA charged $1each time the game is played, then the prize money is adjusted. The total money that the player would earn if the player selected a duck with a square is

If the PTA charged $1each time the game is played, then the prize money is adjusted. The total money that the player would earn if the player selected a duck with nothing on the bottom is