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?