This topic contains a solution. Click here to go to the answer

Author Question: Suppose you have a 2 distribution with 20 degrees of freedom. a. Find the mean. b. Find the ... (Read 171 times)

cool

  • Hero Member
  • *****
  • Posts: 570
Suppose you have a 2 distribution with 20 degrees of freedom.
 a. Find the mean.
  b. Find the variance.
  c. Find the standard deviation.

Question 2

Suppose you have a Student t distribution with 20 degrees of freedom.
 a. Find the mean.
  b. Find the variance.
  c. Find the standard deviation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuate

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

a. 20
b. 40
c. 6.32

Answer to Question 2

a. 0
b. 20/18 = 1.11
c. 1.05





 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

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.

For a complete list of videos, visit our video library