Provide an Appropriate Response

question 15

Essay

Provide an appropriate response.
-A population of people has a mean height of 65 inches. Andrew picks a person at random from the population and records his or her height. He repeats this procedure 49 times more. Bob picks a sample of 30 people at random from the population and records the mean height of the sample. He repeats this procedure 49 times more. Which set of numbers (those recorded by Andrew or those recorded by Bob)do you think will have more variability? Explain your reasoning.

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Definitions:

Vocal Cords

Bands of muscle tissue located in the larynx that vibrate to produce sound when air is expelled from the lungs, enabling speech and singing.

Epithelium

A membranous tissue covering internal organs and other internal surfaces of the body, involved in protection, secretion, and absorption.

Bronchus

Airway connecting the trachea to a lung.

Alveoli

Small pulmonary vesicles where oxygen and carbon dioxide are exchanged in the respiratory process.