Author Question: In a normal distribution of scores, which of the following is true? a. About 5 percent of the ... (Read 80 times)

Alygatorr01285

  • Hero Member
  • *****
  • Posts: 564
In a normal distribution of scores, which of the following is true?
 
  a. About 5 percent of the scores are more than two standard deviations from the mean.
  b. The mean score is always 0.
  c. Most scores are located in the two tails at either end of the distribution.
  d. The standard deviation indicates the arithmetic average score.

Question 2

What does it mean if the standard deviation of a distribution of quiz grades is 0?
 
  a.
 
  An equal number of people received each grade (A, B, C, D, and E).
 
  b.
 
  The distribution is a normal, bell-shaped curve.
 
  c.
 
  Everyone in the class received the same grade or score.
 
  d.
 
  Everyone in the class received a different grade.



Jayson

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

ANSWER:
a

Answer to Question 2

ANSWER:
c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

For a complete list of videos, visit our video library