Author Question: Accuracy is improved by better feedback. Indicate whether the statement is true or ... (Read 107 times)

renzo156

  • Hero Member
  • *****
  • Posts: 526
Accuracy is improved by better feedback.
 
  Indicate whether the statement is true or false

Question 2

Which of the following best defines a composite key?
 
  A) It is an arbitrary, random key with no business meaning
  B) It is an attribute that naturally belongs to the entity
  C) It is made up of two or more attributes combined
  D) It is an attribute that could potentially be used for a primary key



ricroger

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

TRUE

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

For a complete list of videos, visit our video library