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 71 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?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

For a complete list of videos, visit our video library