The Mean Price of a Pound of Ground Beef in 75

question 40

Multiple Choice

The mean price of a pound of ground beef in 75 cities in the Midwest is $2.11 and the standard deviation is $0.56. A histogram of the data shows that the distribution is symmetrical. A local Midwest grocer is selling a pound of ground beef for $3.25. What is this price in standard units?
Assuming the Empirical Rule applies, would this price be unusual or not? Round to the nearest Hundredth.

• A) \( z=2.04 \); This price would not be unusual.
• B) \( z=-2.04 \); This is unusually inexpensive ground beef.
• C) \( z=2.04 \); This is unusually expensive ground beef.
• D) \( z=-2.04 \); This price would not be unusual.

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Definitions:

Internal Carotid Artery

A major artery that supplies blood to the brain, eyes, and other parts of the head.

Pulmonary Artery

The artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.

Oxygenated Blood

Blood that is rich in oxygen and is carried from the lungs to the heart and then distributed to the rest of the body.

Hepatic Portal Veins

A vein that carries blood from the gastrointestinal tract and spleen to the liver, transporting nutrients and toxins to the liver for processing.