The correlation coefficient is a statistical measure that quantifies the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, where -1 indicates a perfect negative relationship, 0 indicates no relationship, and 1 indicates a perfect positive relationship.
Think of the correlation coefficient as a "relationship score" between two variables. Just like how you can rate your compatibility with someone on a scale from -1 (not compatible at all) to 1 (perfectly compatible), the correlation coefficient measures how well two variables "get along."
Scatterplot: A scatterplot is a graphical representation of data points plotted on an x-y axis, showing the relationship between two variables.
Outliers: Outliers are extreme values that deviate significantly from other data points in a dataset and can have a strong impact on the correlation coefficient.
Line of Best Fit: The line of best fit is a straight line that represents the overall trend or pattern in a scatterplot and helps visualize the direction and strength of the linear relationship.
How can the correlation coefficient be used to measure the strength of the relationship in a scatterplot?
What is the range of values the correlation coefficient can take?
A correlation coefficient of -0.80 indicates?
When the correlation coefficient is 0, it implies?
In a scatter plot, if the points form a straight line sloping upward from left to right, the correlation coefficient is most likely?
A correlation coefficient of +0.60 indicates?
The correlation coefficient measures?
Which of the following correlation coefficients indicates the weakest linear relationship?
If the correlation coefficient between two variables is -1, it means that?
The correlation coefficient is unaffected by?
If the correlation coefficient is -0.10, it suggests?
A correlation coefficient of +1 indicates?
How is the coefficient of determination related to the correlation coefficient?
If two variables have a correlation coefficient of -0.85, what can be inferred about their relationship?
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