« previous next »

Author Question: True or False: The expected value of a discrete probability distribution may be negative. A) True ... (Read 89 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
on: Jul 24, 2018
True or False: The expected value of a discrete probability distribution may be negative.
 
  A) True B) False

Question 2

If nothing is known about the shape of a distribution, what percentage of the observations fall within 2 standard deviations of the mean?
 
  A) at least 75 B) at most 25
  C) approximately 95 D) approximately 5


ASDFGJLO

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Deast7027

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


ASDFGJLO

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Ebola Virus Geographic Distribution Ebola Virus Geographic Distribution
Distribution of the Old World monkeys. Distribution of the Old World monkeys.
Distribution of Rods and Cones on the Retina Distribution of Rods and Cones on the Retina
The Distribution of Dominant and Minority Groups The Distribution of Dominant and Minority Groups
ODDS AND PROBABILITY PLEASE ANSWER ALL I DONT HAVE ENOUGH CREDITS ODDS AND PROBABILITY PLEASE ANSWER ALL I DONT HAVE ENOUGH CREDITS
Binomial-probability calculation of seed-color phenotype in six-seeded pods Binomial-probability calculation of seed-color phenotype in six-seeded pods
Video: Anaphylaxis Animation

For a complete list of videos, visit our video library