An American roulette wheel has 38 spaces and if a player wins they keep their bet. Suppose that a $5.00 bet on a single space wins $175.00 if the space is landed on and, otherwise, the player wins nothing. What is the expected value of this bet from the casino's standpoint? Round your answen 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.

There is a game of chance called "Lightning Dice" at a charity carnival.  It costs $2 to play.  The player then rolls 4 dice.  If the player rolls 3 or more sixes, then the player wins $30.  Otherwise, the player wins nothing.  How much can you expect to gain or lose if you play this game 68 times?

A sample of n = 25 scores has a mean of x̅ = 65 and an estimated standard error of sM = 2 points. What is the sample variance?​

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 seventeen $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 $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 $5 each and will sell 600 tickets. There is one $3,000 grand prize, four $400 second prizes, and eighteen $30 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.

In a popular casino game, you can bet one whether a ball will fall in an arc on a wheel colored red, black, or green. Say the probability of a red outcome is 18 that of a black outcome is 36, and that of a green outcome is 2 Suppose someone makes a S25 bet on black. Find the expected net winnings for this single bet. Interpret the result. Choose the correct answer below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. If the $25 bet on black was placed a very large number of times, the bettor would win a total of dollars. O B. If the $25 bet on black was placed a very large number of times, the average winnings would be dollars per bet. O C. On average, a person is expected to win dollars for any bet on the roulette wheel. OD. A person will win dollars every time a $25 bet was placed on black.

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.