The regression equation relating x, the number of hours one ...

[deesands]

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.

[ally]

Answer to Question 1

1

Answer to Question 2

1

[deesands]

Wow, this really help

[atrochim]

Gracias!