This topic contains a solution. Click here to go to the answer

Author Question: If there is a very weak correlation between two variables, then the coefficient of determination ... (Read 122 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
If there is a very weak correlation between two variables, then the coefficient of determination must be
 a. much larger than 1, if the correlation is positive.
  b. much smaller than -1, if the correlation is negative.
  c. equal to one.
  d. closer or equal to zero.

Question 2

A manufacturing process produces items whose weights are normally distributed. It is known that 22.57 of all the items produced weigh between 100 grams up to the mean and 49.18 weigh from the mean up to 190 grams. Determine the mean and the standard deviation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TDubDCFL

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

d

Answer to Question 2

Standard deviation = 30 Mean = 113




imowrer

  • Member
  • Posts: 514
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)


amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

For a complete list of videos, visit our video library