Trendlines

Trendlines

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a trendline?

Back

A trendline is a line that is drawn on a chart to indicate the general direction of a dataset over time. It helps to visualize trends in data.

2.

FLASHCARD QUESTION

Front

What are the types of trendlines commonly used in data analysis?

Back

The common types of trendlines include linear, exponential, logarithmic, polynomial, and moving average.

3.

FLASHCARD QUESTION

Front

How do you determine the best fit trendline for a dataset?

Back

The best fit trendline is determined by analyzing the data points and selecting the trendline that minimizes the distance between the data points and the line, often using methods like least squares.

4.

FLASHCARD QUESTION

Front

What is the purpose of using a trendline in data analysis?

Back

The purpose of using a trendline is to identify patterns, make predictions, and understand the relationship between variables in a dataset.

5.

FLASHCARD QUESTION

Front

What does a positive slope in a trendline indicate?

Back

A positive slope in a trendline indicates that as one variable increases, the other variable also tends to increase.

6.

FLASHCARD QUESTION

Front

What does a negative slope in a trendline indicate?

Back

A negative slope in a trendline indicates that as one variable increases, the other variable tends to decrease.

7.

FLASHCARD QUESTION

Front

What is the significance of the R-squared value in trendline analysis?

Back

The R-squared value indicates the proportion of variance in the dependent variable that can be explained by the independent variable(s) in the model. A value closer to 1 indicates a better fit.

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