True or False: the Professor of a Business Statistics Class

question 73

True/False

True or False: The professor of a business statistics class wanted to find out the mean amount of
time per week her students spent studying for the class.Among the 50 students in her class, 20%
were freshmen, 50% were sophomores and 30% were juniors.She decided to select 2 students
randomly from the freshmen, 5 randomly from the sophomores and 3 randomly from the juniors.
This is an example of a systematic sample.

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Definitions:

Oxygen Transporter

A protein that facilitates the movement of oxygen molecules from the lungs to the rest of the body.

Heme

An iron-containing compound that forms an essential part of hemoglobin and some other biological molecules, responsible for binding oxygen.

Renal Artery

The renal artery is a blood vessel that supplies the kidneys with blood, enabling them to filter and cleanse the blood, remove waste and produce urine.

Vena Cava

A large vein carrying deoxygenated blood into the heart; there are two in humans, the superior vena cava and the inferior vena cava.