Statistical Formulas:
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Mean, mode, and median are three fundamental measures of central tendency in statistics. They provide different ways to identify the center of a dataset and are used to summarize and understand data distributions.
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 frequently occurring value(s) in a dataset.
Details: These measures of central tendency are essential for data analysis across various fields including research, business, economics, and social sciences. They help summarize large datasets and identify typical values.
Tips: Enter numeric values separated by commas. The calculator will automatically filter out non-numeric values and compute the mean, median, and mode of the valid numbers.
Q1: When should I use mean vs median?
A: Use the mean for normally distributed data without outliers. Use the median when your data contains 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 appear with the same highest frequency.
Q3: What if all values are unique?
A: If all values appear only once, the dataset has no mode.
Q4: How does the calculator handle decimal values?
A: The calculator accepts and properly calculates with decimal values, providing results rounded to 4 decimal places.
Q5: What's the difference between population mean and sample mean?
A: This calculator computes the sample mean. For population mean, the formula is the same but the interpretation differs based on whether you're working with a full population or a sample.