David, the promoter of an outdoor concert, expects a net profit of $100,000, unless it rains, which would reduce the net profit to $20,000. The probability of rain is 0.40. For a premium of $23,000 David can purchase insurance coverage that would pay him $100,000 in case of rain. Find the expected net profit when the insurance is not purchased. The expected net profit will be $ when the insurance is not purchased.

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.

Suppose you are producing an outdoor festival. You estimate that you will make $100000 if it does not rain and make $50000 if it does rain. The weather bureau predicts that the chance of rain is 35% for the day of the concert. What are your expected earnings for the festival?

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.

You pay $20 to enter a raffle.  The first ticket drawn wins $1036, the second ticket drawn wins $477, the third through fifth win $186, and the sixth through tenth win $49.  Suppose 2345 tickets were sold.  What is the expected earning on your ticket?

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.

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.