Use the REGRESSION Feature on a Graphing Calculator

question 19

Multiple Choice

Use the REGRESSION feature on a graphing calculator.
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer students.The results are recorded in the table below. Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab.

• A)y = 1.86 + 88.6x
• B)y = 0.930 + 44.3x
• C)y = 44.3 + 0.930x
• D)y = 88.6 - 1.86x

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Definitions:

Stroke

A medical condition caused by interruption of blood supply to the brain, resulting in brain injury.

Ischemia

Reduced blood supply to an area of the body.

Popliteal Artery

The artery located at the back of the knee, which supplies blood to the lower leg.

Femoral Artery

A major blood vessel of the lower limb, supplying oxygenated blood to the leg.