You have a bag with 3 red balls and 2 blue balls. You choose 3 balls at random from the bag without replacement. (Same as in #4.) We play a game: You pay $5 to play, and I will pay you $10 for every blue ball you get. Let Y be how much money you make. a. What is the expected amount of money you make each game?

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $7 each and will sell 600 tickets. There is one $1,000 grand prize, three $200 second prizes, and thirteen $10 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent. $

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $8 each and will sell 800 tickets. There is one $2,000 grand prize, two $500 second prizes, and eleven $30 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $10 each and will sell 800 tickets. There is one $2,000 grand prize, three $400 second prizes, and sixteen $20 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent. $ 5.6 Hint: Hint

Decide which of these numbers could not possibly be probabilities. Explain your answers. a. 00.47 b. −0.047 c. 3.5 d. 1/3.5

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $8 each and will sell 500 tickets. There is one $3,000 grand prize, three $300 second prizes, and sixteen $40 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent. $4

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $9 each and will sell 600 tickets. There is one $1,000 grand prize, three $400 second prizes, and eleven $40 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $10 each and will sell 500 tickets. There is one $2,000 grand prize, three $400 second prizes, and fifteen $30 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $10 each and will sell 700 tickets. There is one $3,000 grand prize, three $300 second prizes, and twelve $10 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.