Scatterplots and Trendlines

Scatterplots and Trendlines

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional plane.

2.

FLASHCARD QUESTION

Front

What does a line of best fit represent in a scatterplot?

Back

A line of best fit represents the trend of the data points in a scatterplot, indicating the general direction of the relationship between the variables.

3.

FLASHCARD QUESTION

Front

How do you determine the line of best fit?

Back

The line of best fit is determined by minimizing the distance between the line and all the data points, often using a method called least squares.

4.

FLASHCARD QUESTION

Front

What does a positive correlation in a scatterplot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

5.

FLASHCARD QUESTION

Front

What does a negative correlation in a scatterplot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

6.

FLASHCARD QUESTION

Front

What does no correlation mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; the data points do not show any trend.

7.

FLASHCARD QUESTION

Front

What is the purpose of a trendline in a scatterplot?

Back

The purpose of a trendline is to summarize the data and make predictions about future values based on the observed relationship.

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