DrStanley Would Like to Find Out Whether Her Study Guide

question 16

Multiple Choice

Dr.Stanley would like to find out whether her study guide helps students perform better on exams.She randomly assigns students to one of two groups: Group 1 receives her study guide and Group 2 receives no study guide.Then,after three weeks,the performance of each student is measured on an exam.What is the dependent variable in this study?

• A) the study guide
• B) the group that did not receive the study guide
• C) students' performance on the exam
• D) There is no dependent variable in this study.

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Definitions:

Perfect Square Trinomial

A perfect square trinomial is a quadratic expression that can be expressed as the square of a binomial, characterized by specific relationships among its coefficients.

Perfect Square Trinomial

A trinomial expression that is the square of a binomial, characterized by having three terms where two are perfect squares and one is double the product of the square roots of those squares.

Zero-Factor Property

A principle stating that if the product of two quantities is zero, then at least one of the quantities must also be zero.

Equation

An assertion in mathematics that two expressions, often containing variables and constants, are equivalent.