This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If high scores on X are paired with low scores on Y, the covariance is going to be a. positive. ... (Read 81 times)

javeds

  • Hero Member
  • *****
  • Posts: 570
on: Jun 20, 2018
If high scores on X are paired with low scores on Y, the covariance is going to be
 
  a. positive.
  b. negative.
  c. zero.
  d. There is no way to tell.

Question 2

For a given set of data the covariance between X and Y is .80. The standard deviation of X is 2.0, and the standard deviation of Y is 3.0. The resulting correlation is closest to
 
  a. .00
  b. .15
  c. .80
  d. -.30


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

deja

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

B

Answer to Question 2

B


javeds

  • Member
  • Posts: 570
Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

A positive feedback loop. A positive feedback loop.
The common rail on a Cummins diesel engine. A high-pressure pump (up to 30,000 PSI) is used to ... The common rail on a Cummins diesel engine. A high-pressure pump (up to 30,000 PSI) is used to ...
Graduating High School Graduating High School
Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ... Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ...
Expected Distribution of IQ Scores Expected Distribution of IQ Scores
High in the Andes, a scientist measures the stride of a carnivorous dinosaur High in the Andes, a scientist measures the stride of a carnivorous dinosaur
Video: Major Elements in Biological Molecules: Proteins

For a complete list of videos, visit our video library