DIGITAL SAT Practice Test #1_Module 2

Front

What is the purpose of the Digital SAT?

Back

The Digital SAT is designed to assess students' readiness for college by measuring their skills in reading, writing, and mathematics.

Front

Define 'quantitative reasoning'.

Back

Quantitative reasoning refers to the ability to understand, interpret, and analyze quantitative information, often involving mathematical concepts.

Front

What is a 'variable' in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.

Front

Explain the concept of 'mean' in statistics.

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

What does 'standard deviation' measure?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.

Front

What is the difference between 'independent' and 'dependent' variables?

Back

An independent variable is manipulated to observe its effect on a dependent variable, which is measured in an experiment.

Front

Define 'proportional relationships'.

Back

Proportional relationships are relationships between two quantities where the ratio between them remains constant.

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Front

Explain the concept of 'functions' in mathematics.

Back

A function is a relation that assigns exactly one output for each input, often represented as f(x).

Front

What is 'linear regression'?

Back

Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables using a linear equation.