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The concentration of a medication ( in milligram per liters) in a patient's blood as time passes is shown in the table below Time (Hours), 0 0.5 1...

The concentration of a medication ( in milligram per liters) in a patient's blood as time passes is shown in the table below

Time (Hours),

0

0.5

1

1.5

2

Concentration (mg/l)

0

78.1

99.8

84.4

50.1


  • Make a scatter plot of this data on your calculator. Does this data follow a linear regression or a quadratic regression? how can you tell?
  • What is the equation for your regression?
  • Describe the correlation.
  • What is the concentration of medicine in the blood after 1.75 hours?

Top Answer

Quadratic y = -74.829x 2 + 170.96x +... View the full answer

3 comments
  • where did you get 74.829x2 + 170.96x + 3.7657?
    • animalhousee75
    • Dec 02, 2018 at 10:26pm
  • How did you get R2 = 0.9772
    • animalhousee75
    • Dec 02, 2018 at 10:38pm
  • Those are directly from a calculator. It gives the A, B & C parameters (depending on your calculator model, but mine is y = A+Bx+Cx^2). Then R is also given, so you have to do R^2 to find 0.9772.
    • Sedho
    • Dec 03, 2018 at 3:56am

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