« previous next »

Author Question: If the correlation coefficient r = 1.00, then all the observations must fall exactly on: a. a ... (Read 120 times)

sabina

  • Hero Member
  • *****
  • Posts: 563
on: Jun 24, 2018
If the correlation coefficient r = 1.00, then all the observations must fall exactly on:
 a. a straight line with a slope that equals 1.00.
  b. a straight line with a negative slope.
  c. a straight line with a positive slope.
  d. a horizontal straight line with a zero slope.

Question 2

Generally speaking, if two variables are unrelated (as one increases, the other shows no pattern), the covariance will be:
 a. a large positive number.
  b. a large negative number.
  c. a positive or negative number close to zero.
  d. None of these choices.


aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Fall Fall
Fall Fall
Fall Fall
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
A sample of 400 observations will be taken from an infinite population. The population ... A sample of 400 observations will be taken from an infinite population. The population ...
Illustrated correlation between the Mendelian postulates of unit factors Illustrated correlation between the Mendelian postulates of unit factors
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library