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Preview_Scatterplots and Linear Regression

Authored by Nellie Horton

Mathematics

University

CCSS covered

Used 2+ times

Preview_Scatterplots and Linear Regression
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is linear regression?

A method used to calculate the mean of a dataset.

A machine learning algorithm used to classify data into different categories.

A technique used to analyze time series data.

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

Tags

CCSS.8.SP.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correlation coefficient?

The correlation coefficient is a measure of the spread of data points around the mean.

The correlation coefficient is a measure of the difference between two variables.

The correlation coefficient is a measure of the probability of a relationship between two variables.

The correlation coefficient is a statistical measure that measures the strength and direction of the linear relationship between two variables.

Tags

CCSS.HSS.ID.C.8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the line of best fit determined in a scatterplot?

Correlation coefficient

Interpolation

Extrapolation

Linear regression

Tags

CCSS.8.EE.B.5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are residuals in the context of linear regression?

The average of the observed and predicted values of the dependent variable.

Differences between observed and predicted values of the dependent variable.

The sum of the observed and predicted values of the dependent variable.

The product of the observed and predicted values of the dependent variable.

Tags

CCSS.HSS.ID.B.6B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you interpret scatterplots?

Scatterplots are used to visualize the relationship between two variables.

Scatterplots show the distribution of a single variable.

Scatterplots are used to display categorical data.

Scatterplots are only used for linear relationships.

Tags

CCSS.8.SP.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of linear regression?

The purpose of linear regression is to predict future outcomes.

The purpose of linear regression is to determine causation between variables.

The purpose of linear regression is to analyze categorical data.

The purpose of linear regression is to model the relationship between variables.

Tags

CCSS.8.SP.A.3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a positive correlation coefficient indicate?

As one variable decreases, the other variable also decreases.

There is no relationship between the two variables.

As one variable increases, the other variable also increases.

As one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

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