Statistical Formulas:
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Mean, median, and mode are three fundamental measures of central tendency in statistics. They provide different ways to describe the center or typical value of a dataset, each with its own strengths and applications in data analysis.
The calculator uses standard statistical formulas:
Where:
Explanation: The mean represents the average value, the median represents the middle value, and the mode represents the most common value in the dataset.
Details: These measures help summarize and understand data distributions. Mean is sensitive to outliers, median is robust to outliers, and mode identifies the most frequent value. Together they provide a comprehensive view of data centrality.
Tips: Enter numeric values separated by commas. The calculator will compute all three measures of central tendency. Ensure values are properly formatted for accurate results.
Q1: When should I use mean vs median?
A: Use mean for normally distributed data without outliers. Use median when data has outliers or is skewed.
Q2: Can a dataset have multiple modes?
A: Yes, a dataset can be bimodal (two modes) or multimodal (multiple modes) if multiple values occur with the same highest frequency.
Q3: What if all values are unique?
A: If all values occur only once, the dataset has no mode, or every value can be considered a mode.
Q4: How does outliers affect these measures?
A: Outliers significantly affect the mean but have little effect on the median and mode.
Q5: Are these measures applicable to all data types?
A: Mean and median require numerical data. Mode can be used with both numerical and categorical data.