Line of best Fit

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What is a line of best fit?

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A line of best fit is a straight line that best represents the data on a scatter plot. It shows the trend of the data points.

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How do you determine if a line is an accurate line of best fit?

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A line is an accurate line of best fit if it minimizes the distance between itself and all the data points, ideally passing through the center of the data distribution.

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What does a positive association in a graph indicate?

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A positive association indicates that as one variable increases, the other variable also increases.

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What does a negative association in a graph indicate?

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A negative association indicates that as one variable increases, the other variable decreases.

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What does it mean if there is no association in a graph?

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No association means that there is no discernible relationship between the two variables; changes in one do not affect the other.

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What is the equation of a line in slope-intercept form?

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How can you find the equation of the line of best fit using two points?

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What is the significance of the line of best fit in data analysis?

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The line of best fit helps in predicting values and understanding the relationship between variables in data analysis.