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

Author Question: The regression equation relating x, the number of hours one studied, to y, the exam grade is ... (Read 158 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jul 24, 2018
The regression equation relating x, the number of hours one studied, to y, the exam grade is determined to be  = 4.1x + 68.7. Predict the exam grade of someone who studied one and a half hours.
  1.approximately 75
  2.approximately 58
  3.approximately 100
  4.approximately 69

Question 2

The regression equation relating x, the number of hours one studied, to y, the exam grade is determined to be  = 4.1x + 68.7. From this equation, one can conclude that
  1.On average, each additional hour of studying will increase the exam grade by approximately four points.
  2.On average, each additional hour of studying will increase the exam grade approximately 69 points.
  3.If one studies four hours, the exam grade will be approximately a 69.
  4.The effect of one additional hour of studying can not be determined unless it is known how long one studied.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

1

Answer to Question 2

1


deesands

  • Member
  • Posts: 514
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Biology Is Studied at Many Levels of Organization (Part 2) Biology Is Studied at Many Levels of Organization (Part 2)
The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri
How to solve any rational equation by finding the lowest common denominator (Part 2) How to solve any rational equation by finding the lowest common denominator (Part 2)
What would your average (mean) number of cells per cluster be? What would your average (mean) number of cells per cluster be?
The mud track grade 1 reading The mud track grade 1 reading
It’s hot grade 1 reading It’s hot grade 1 reading
Video: Vascular tissues in a corn stem and a buttercup root

For a complete list of videos, visit our video library