Bivariate Statistics

Front

What is Bivariate Statistics?

Back

Bivariate Statistics is the branch of statistics that deals with the relationship between two variables. It involves analyzing how one variable affects or is associated with another.

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What does a Positive Linear Correlation indicate?

Back

A Positive Linear Correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a Negative Linear Correlation indicate?

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A Negative Linear Correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is the correlation coefficient (r)?

Back

The correlation coefficient (r) is a numerical measure of the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

Front

What does r = 0 indicate?

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r = 0 indicates that there is no correlation between the two variables.

Front

What is an outlier in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points in a scatterplot, which can affect the overall analysis.

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What is the line of best fit?

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The line of best fit is a straight line that best represents the data on a scatterplot, minimizing the distance between the line and all data points.

Front

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

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The equation of the line of best fit can be determined using statistical methods such as least squares regression.

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What is the purpose of the line of best fit?

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The purpose of the line of best fit is to predict the value of one variable based on the value of another variable.

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What does it mean if a line is not an accurate line of best fit?

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If a line is not an accurate line of best fit, it means that it does not closely follow the trend of the data points, leading to poor predictions.