Author Question: If a payout is certain to occur, then the variance of that payout equals A) zero. B) one. C) ... (Read 104 times)

Engineer

  • Hero Member
  • *****
  • Posts: 527
If a payout is certain to occur, then the variance of that payout equals
 
  A) zero.
  B) one.
  C) the expected value.
  D) the expected value squared.

Question 2

Sarah buys little stuffed animals for 5 each. They come in different varieties. If the producer stops making (retires) a certain variety, a stuffed animal of that variety will be worth 100; otherwise it is worth 0. There is 50 chance that any variety will be retired. What is the value to Sarah of knowing ahead of time whether a variety will be retired?
 
  A) 50
  B) 5
  C) 2.50
  D) 0


mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

For a complete list of videos, visit our video library