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

Author Question: Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals -0.75, ... (Read 78 times)

stephzh

  • Hero Member
  • *****
  • Posts: 556
on: Jun 24, 2018
Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals -0.75, this means that:
 a. there is very weak correlation.
  b. the slope b1 is = -0.75.
  c. the value of X is always greater than the value of Y.
  d. None of these choices are true.

Question 2

If the standard deviation of x is 18, the covariance of x and y is 120, the coefficient r = 0.90, then the standard deviation of y is 54.87.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

srodz

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

F


stephzh

  • Member
  • Posts: 556
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

okolip

  • Member
  • Posts: 362
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Correlation between Celsius and Fahrenheit Scales Correlation between Celsius and Fahrenheit Scales
The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine
Relationship of the conduction system to an ECG strip. Relationship of the conduction system to an ECG strip.
Two-point linear perspective. Two-point linear perspective.
Dose–response relationship. Dose–response relationship.
Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh
Video: Methods that regulate pH

For a complete list of videos, visit our video library