« previous next »

Author Question: True or False: The expected value of a discrete probability distribution may be negative. A) True ... (Read 103 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?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Timothy O'Sullivan (negative) and Alexander Gardner (print), A Harvest of Death, Gettysburg, ... Timothy O'Sullivan (negative) and Alexander Gardner (print), A Harvest of Death, Gettysburg, ...
Cumulative Standard Normal Distribution Cumulative Standard Normal Distribution
Generalized scheme showing the contribution of absorption, distribution, metabolism, elimination, ... Generalized scheme showing the contribution of absorption, distribution, metabolism, elimination, ...
Population Distribution Population Distribution
How the Distribution of Education Affects the Distribution of Income How the Distribution of Education Affects the Distribution of Income
Random distribution of dandelions Random distribution of dandelions
Video: Lipid digestion - mouth, stomach and small intestine

For a complete list of videos, visit our video library