Answer
A scatter plot is a graph that shows the relationship between two variables by plotting points on a coordinate plane. Each point represents an observation with values for both variables. It helps in identifying trends, correlations, and outliers between the variables.
Solution
A scatter plot is a type of data visualization that displays values for typically two variables for a set of data. Each point on the scatter plot represents an observation in the dataset, with the position of the point determined by the values of the two variables being compared.
### Key Features of a Scatter Plot:
1. **Axes**: The horizontal axis (x-axis) represents one variable, while the vertical axis (y-axis) represents the other variable.
2. **Data Points**: Each point on the plot corresponds to a pair of values (x, y) from the dataset.
3. **Trends**: Scatter plots are useful for identifying relationships or correlations between the two variables. For example:
- A positive correlation is indicated by points that trend upwards from left to right.
- A negative correlation is indicated by points that trend downwards from left to right.
- No correlation is indicated by a random distribution of points.
4. **Outliers**: Scatter plots can also help identify outliers, which are points that fall far away from the general pattern of the data.
5. **Clusters**: They can show clusters of data points, indicating groups of similar values.
### Uses of Scatter Plots:
- To visualize the relationship between two quantitative variables.
- To identify trends, patterns, and correlations in data.
- To detect outliers and anomalies in datasets.
Overall, scatter plots are a powerful tool in exploratory data analysis and can provide insights into the nature of the relationship between variables.
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