This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose you have a X2 distribution with 20 degrees of freedom. a. Find the mean. b. Find the ... (Read 273 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jun 24, 2018
Suppose you have a X2 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

LegendaryAnswers

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jun 24, 2018
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


penguins

  • Hero Member
  • *****
  • Posts: 903
Reply #2 on: Jun 24, 2018
Thank you


LegendaryAnswers

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

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

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Sprain. A sprain involves damage to one or more ligaments, and is categorized into three degrees of Sprain. A sprain involves damage to one or more ligaments, and is categorized into three degrees of
The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010 The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010
How to find the reaction for each of the beams below. How to find the reaction for each of the beams below.
A bell-shaped, or “normal,” curve shows the distribution of phenotypes for traits controlled by ... A bell-shaped, or “normal,” curve shows the distribution of phenotypes for traits controlled by ...
The threshold model explains the discontinuous distribution of some multifactorial traits. In this m The threshold model explains the discontinuous distribution of some multifactorial traits. In this m
Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ... Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ...
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

For a complete list of videos, visit our video library