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

Author Question: If the coefficient of determination is 0.975, then the slope of the regression line: a. must be ... (Read 178 times)

Pineappleeh

  • Hero Member
  • *****
  • Posts: 585
on: Jul 24, 2018
If the coefficient of determination is 0.975, then the slope of the regression line:
 a. must be positive
  b. must be negative
  c. could be either positive or negative
  d. must be 0
  e. none of these

Question 2

Given the least squares regression line y = -2.48 + 1.63x, and a coefficient of determination of 0.81, the coefficient of correlation is:
 a. -0.85
  b. 0.85
  c. -0.90
  d. 0.90
  e. -0.81


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Heffejeff

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


Pineappleeh

  • Member
  • Posts: 585
Reply 2 on: Jul 24, 2018
:D TYSM

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

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?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

The north-facing slope at this site supports a Mediterranean woodland, while the vegetation on the s The north-facing slope at this site supports a Mediterranean woodland, while the vegetation on the s
the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M
Line analysis of Titian, Assumption and Consecration of the Virgin. Line analysis of Titian, Assumption and Consecration of the Virgin.
Determination of Income Inequality Determination of Income Inequality
Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1 Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1
Number line (real numbers) Number line (real numbers)
Video: Mutations and translation

For a complete list of videos, visit our video library