1. What is Range?

The range is the simplest measure of variability in statistics, calculated as the difference between the maximum and minimum values in a dataset.

2. How Does the Calculator Work?

The calculator uses the range formula:

Where:

• \( R \) — Range (same unit as input values)
• \( max \) — Maximum value in dataset
• \( min \) — Minimum value in dataset

Explanation: The range gives the spread between the highest and lowest values, providing a quick sense of data variability.

3. Importance of Range Calculation

Details: While simple, range is useful for understanding data spread quickly. It's commonly used in quality control, weather forecasting, and basic statistical analysis.

4. Using the Calculator

Tips: Enter the maximum and minimum values from your dataset. The calculator will compute the difference between them.

5. Frequently Asked Questions (FAQ)

Q1: What are the limitations of range?
A: Range only considers two values (max and min) and is sensitive to outliers. It doesn't describe the distribution of values between these extremes.

Q2: When is range most useful?
A: For small datasets or when you need a quick estimate of variability. For more robust analysis, consider standard deviation or interquartile range.

Q3: Can range be negative?
A: No, since it's the difference between max and min values (and max ≥ min by definition), range is always zero or positive.

Q4: How does range compare to other measures of spread?
A: Range is simpler but less informative than variance, standard deviation, or interquartile range which consider all data points.

Q5: What units does range have?
A: Range has the same units as the original data values (e.g., if measuring in meters, range is in meters).