Find the Number of Proper Subsets of the Set $\{ x \mid x$

question 101

Multiple Choice

Find the number of proper subsets of the set.
- $\{ x \mid x$ is a day of the week $\}$

• A) 128
• B) 64
• C) 127
• D) 256

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Definitions:

Regression Analysis

A statistical method used to understand the relationship between a dependent variable and one or more independent variables.

Statistical Technique

A method used in analyzing data that involves mathematical theories and formulas to uncover patterns, trends, and relationships within data sets.

Relationships

The way in which two or more concepts, objects, or people are connected, or the state of being connected.

Equal Level

A principle of maintaining the same rank or status among various elements or individuals.