« previous next »

Author Question: A sample made up of volunteers may be biased because a. the control group and the experimental ... (Read 62 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
on: Jun 20, 2018
A sample made up of volunteers may be biased because
 
  a. the control group and the experimental group can never be equated
  b. it is not economical
  c. they may not be representative of the total population
  d. none of the above

Question 2

The median is always:
 
  a. an actual score
  b. at the 50th percentile
  c. larger than the mean
  d. the same as the arithmetic average


kthug

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Breakdown of pyruvate and the attachment of an acetyl group to CoA Breakdown of pyruvate and the attachment of an acetyl group to CoA
A sample encounter form. A sample encounter form.
Humoral control of blood sugar levels. Humoral control of blood sugar levels.
Beer is made from the fermentation of yeast and the natural sugars from grains Beer is made from the fermentation of yeast and the natural sugars from grains
CDK1 and cyclin B control the transition from G2 to M phase CDK1 and cyclin B control the transition from G2 to M phase
Sample Size Affects Sampling Error Sample Size Affects Sampling Error
Video: Neurosynapse Animation

For a complete list of videos, visit our video library