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

Author Question: Summarize the empirical rule.[br][br][b][color=gray]Question 2[/color][/b][br][br]The chapter notes ... (Read 118 times)

nmorano1

  • Hero Member
  • *****
  • Posts: 598
Summarize the empirical rule.

Question 2

The chapter notes that the standard deviation will always be larger than the mean absolute deviation. Explain why.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

For distributions that are bell-shaped and symmetrical: 1) About 68 of observations will fall within 1 standard deviation of the mean. 2) About 95 of observations will fall within 2 standard deviations of the mean. 3) Practically all observations will fall within 3 standard deviations of the mean.

Answer to Question 2

When the extreme values are squared, they affect a greater influence.





 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

For a complete list of videos, visit our video library