Which of the following are statisticians who compile statistics to predict the risk of an event occurring in the population?

The price of a cowboy hat is $100. Willie can produce a hat at a marginal cost of $130, Waylon can produce at a marginal cost of $100, and Merle can produce at a marginal cost of $85. Which of the following statements is correct?

A) The sum of producer surplus is $15. B) All three of these sellers will gain producer surplus from selling a hat. C) The sum of producer surplus is $30. D) Willie's producer surplus is $30. E) The sum of producer surplus is $45.

Students can rent a Blu-ray movie at Campus Video for $4. As the price of Blu-ray players fall, the

A) quantity supplied of Blu-ray movies will decrease. B) demand for Blu-ray movies will increase. C) supply of Blu-ray movies will decrease. D) quantity demanded of Blu-ray movies will increase.