Decide Whether or Not the Modulo System Forms a Group

question 92

Multiple Choice

Decide whether or not the modulo system forms a group.
-{1, 2, 3, 4}; multiplication modulo 5

• A) Group
• B) Not a group

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Definitions:

Triple-blind Study

A study design in which the participants, the people administering the treatments, and the researchers analyzing the results are unaware of who is receiving the treatment and who is receiving the placebo.

Population Study

Research conducted on a large group of individuals aimed at understanding the prevalence, incidence, or experience of a particular condition or characteristic within that population.

Experimental Drug

A compound or substance being tested for its therapeutic effects in clinical trials.

Placebo

A substance with no therapeutic effect, often used as a control in testing new drugs to assess the psychological impact of receiving treatment.