The Professor of a Business Statistics Class Wanted to Find

question 121

True/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:

Denominator

The bottom number in a fraction, which represents the total number of equal parts the whole is divided into.

Metric Units

A system of measurement based on powers of ten, including units such as meters, liters, and grams.

Volume

The amount of space occupied by an object as measured in cubic units.

Improper Fraction

A fraction in which the top number is greater than or equal to the bottom number.