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 80 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
:D TYSM

hollysheppard095

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

The linear meiosis of Neurospora The linear meiosis of Neurospora
The accessory organs of the digestive system: the liver, gallbladder, and pancreas. Image shows the The accessory organs of the digestive system: the liver, gallbladder, and pancreas. Image shows the
Linear Perspective Linear Perspective
How to set up and solve linear models (Question 4) How to set up and solve linear models (Question 4)
Correlation Between Video Games and Spatial Skills in Youth Correlation Between Video Games and Spatial Skills in Youth
The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness) The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness)
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library