Scatter Plot & Line of Best Fit Practice

Scatter Plot & Line of Best Fit Practice

Assessment

Flashcard

Mathematics

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a scatter plot?

Back

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

2.

FLASHCARD QUESTION

Front

What does an outlier in a scatter plot indicate?

Back

An outlier is a data point that differs significantly from other observations. It can indicate variability in the data or an error in measurement.

3.

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, showing the trend of the data.

4.

FLASHCARD QUESTION

Front

How do you determine the slope of the line of best fit?

Back

The slope is determined by the change in the y-values divided by the change in the x-values between two points on the line.

5.

FLASHCARD QUESTION

Front

What does a positive association in a scatter plot mean?

Back

A positive association means that as one variable increases, the other variable also tends to increase.

6.

FLASHCARD QUESTION

Front

What does a negative association in a scatter plot mean?

Back

A negative association means that as one variable increases, the other variable tends to decrease.

7.

FLASHCARD QUESTION

Front

What is the y-intercept in the context of a line of best fit?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is zero.

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