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

Author Question: The distinction between the average deviation and the variance is A) The average deviation is the ... (Read 69 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560
The distinction between the average deviation and the variance is
 
  A) The average deviation is the square root of the variance.
  B) The average deviation is the average distance each score is from the mean, whereas the variance in the average squared distance each score is from the mean.
  C) The average deviation is the square of the variance.
  D) The variance is the square of the standard deviation, which is equal to .707 times the average deviation.

Question 2

In computing the variance, if we merely added up all the deviations from the mean without first squaring them, the average deviation from the mean would be
 
  A) 1.0, no matter how variable the scores were.
  B) 1.0, if the scores had a large variance.
  C) 0.0, if the scores had a small variance.
  D) 0.0, no matter how variable the scores were.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D




nelaaney

  • Member
  • Posts: 560
Reply 2 on: Aug 4, 2018
Wow, this really help


scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

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?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

For a complete list of videos, visit our video library