« previous next »

Author Question: The expected value of the discrete random variable x is , a weighted average of all possible values ... (Read 54 times)

asan beg

  • Hero Member
  • *****
  • Posts: 570
on: Jun 24, 2018
The expected value of the discrete random variable x is , a weighted average of all possible values of x.
 a. True
  b. False
  Indicate whether the statement is true or false

Question 2

In a regression analysis, the regression equation is given by y = 12 - 6x. If SSE = 510 and SST = 1000 . then the coefficient of correlation is
 a. -0.7
  b. +0.7
  c. 0.49
  d. -0.49


ricroger

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Your heart beats over 36 million times a year.

Lab Values Lab Values
Variable Gases: Ozone Variable Gases: Ozone
How to find the average value of a function How to find the average value of a function
As a result of a hole in the graph, which of the following functions does not have an average ... As a result of a hole in the graph, which of the following functions does not have an average ...
Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila
In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ... In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ...
Video: Stroke volume - afterload definition & hypertension

For a complete list of videos, visit our video library