Author Question: A share of an oil company can be worth 10 with a probability of 0.50 and 20 with a probability of ... (Read 30 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
A share of an oil company can be worth 10 with a probability of 0.50 and 20 with a probability of 0.50. What is the standard deviation of the price of this share?
 
  A) 3
  B) 5
  C) 6
  D) 8.5

Question 2

A share of a restaurant chain can be worth 2 with a probability of 0.40 and 10 with a probability of 0.60. What is the variance of the price of this share?
 
  A) 3
  B) 5
  C) 6
  D) 8.5


medine

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library