Asked by Amanjot singh on May 07, 2024
Verified
A researcher studying the relationship between the number of hours students spend studying and their score on an exam calculates the following regression equation: Y = 4.07 + .21(X) . In this example, .21 refers to ______.
A) the Y-intercept
B) the slope of the equation
C) exam scores
D) the number of hours spent studying
Y-Intercept
The point where a line crosses the Y-axis on a graph.
Regression Equation
A mathematical formula that models or predicts the relationship between a dependent variable and one or more independent variables.
Exam Scores
Quantitative assessments used to measure a student's academic performance in a course or test.
- Explore the fundamentals of linear regression, including the slope, Y-axis intercept, and their respective meanings.
- Detail the separate features of a regression equation, including the slope and Y-intercept, and what they manifest.
Verified Answer
PA
putri aishahMay 14, 2024
Final Answer :
B
Explanation :
In a regression equation, the coefficient of X represents the slope of the line. Therefore, in this equation, .21 represents the slope of the relationship between the number of hours spent studying and exam scores.
Learning Objectives
- Explore the fundamentals of linear regression, including the slope, Y-axis intercept, and their respective meanings.
- Detail the separate features of a regression equation, including the slope and Y-intercept, and what they manifest.