What is Descriptive Statistics?
Descriptive statistics is a branch of statistics that involves summarizing and organizing data so it can be easily understood. It provides simple summaries about the sample and the measures.
Key Concepts
- Mean: The average of a data set.
- Median: The middle value separating the higher half from the lower half of a data sample.
- Mode: The value that appears most frequently in a data set.
- Range: The difference between the highest and the lowest values.
- Variance: A measure of how data points differ from the mean.
- Standard Deviation: The square root of the variance, indicating how much the values of a data set differ from the mean.
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