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CalcWolf Math Calculateur de Moyenne
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Mean, Median, Mode & Range Calculator

Enter any set of numbers to find the mean, median, mode, range, sum, and count. Works with any dataset size.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Mean, Median, and Mode

Mean: Sum divided by count. Sensitive to outliers. Median: Middle value when sorted — resistant to outliers, better for skewed data. Mode: Most frequent value. Use mean for symmetric data (test scores), median for skewed data (income, home prices), and mode for categorical data.

When to Use Each

The median US household income ($75K) is more representative than the mean ($105K) because billionaires skew the average up. In symmetric distributions (heights, test scores), mean and median are nearly equal. A large gap between mean and median indicates skewed data.

⚡ CalcWolf Insight

Average calculator gets 100K+ monthly searches — mostly students. Search volume spikes 40% during the school year. Adding mean/median/mode captures the statistics class searches too.

Frequently asked questions
How do I calculate the average?
Add all numbers and divide by the count. For 85, 90, 78, 92, 88: sum = 433, count = 5, average = 86.6.
What is the difference between mean and median?
Mean sums and divides. Median is the middle value. For [1, 2, 3, 4, 100]: mean = 22 (skewed by 100), median = 3 (not affected). Median is better for data with outliers.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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