Linear, Quadratic, Exponential Regression

Linear, Quadratic, Exponential Regression

Assessment

Flashcard

Mathematics

9th - 12th Grade

Practice Problem

Hard

CCSS
HSF.LE.B.5, 8.EE.B.5, HSF-LE.A.1B

+3

Standards-aligned

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is correlation in statistics?

Back

Correlation measures the strength and direction of a linear relationship between two variables. It can be positive, negative, or no association.

Tags

CCSS.HSF-LE.A.1B

2.

FLASHCARD QUESTION

Front

What does a linear regression equation represent?

Back

A linear regression equation represents the relationship between a dependent variable (y) and an independent variable (x) in the form y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.HSF.LE.B.5

3.

FLASHCARD QUESTION

Front

What does an R-squared (R²) value of 1 indicate?

Back

An R-squared value of 1 indicates that the regression line perfectly fits the data points, meaning all points lie exactly on the line.

4.

FLASHCARD QUESTION

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.

Tags

CCSS.8.EE.B.5

5.

FLASHCARD QUESTION

Front

How do you calculate the slope of a linear regression line?

Back

The slope (m) of a linear regression line is calculated using the formula m = (nΣ(xy) - ΣxΣy) / (nΣ(x^2) - (Σx)^2), where n is the number of data points.

Tags

CCSS.8.EE.B.5

6.

FLASHCARD QUESTION

Front

What is the difference between linear and quadratic regression?

Back

Linear regression fits a straight line to data, while quadratic regression fits a parabolic curve, allowing for a U-shaped relationship.

7.

FLASHCARD QUESTION

Front

What is an exponential regression model?

Back

An exponential regression model describes data that grows or decays at a constant percentage rate, typically represented as y = ab^x, where a is a constant and b is the base of the exponential.

Tags

CCSS.HSF-LE.A.1A

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