Standard Deviation of 10, 20, 30, 40, 50
Enter your dataset below to find the mean, variance, and standard deviation instantly.
Standard Deviation Calculator
Separate numbers with commas, spaces, or newlines.
Descriptive Statistics
Count (N):8
Sum (Σx):144
Mean (μ):18
Population (Entire Group)
Standard Deviation (σ):4.8989795
Variance (σ²):24
Sample (Subset of Group)
Sample Standard Deviation (s):5.2372294
Sample Variance (s²):27.428571
How to use the Standard Deviation Calculator?
Get instant and accurate results with our Standard Deviation Calculator. Designed for speed and precision, our tool helps you perform this calculation in real-time without any page reloads. Simply input your values to get started.
Why use our tool?
- Instant Results: Powered by modern web technologies, results appear exactly as you type.
- 100% Free: No hidden fees, no subscriptions, and no registration required to use the Standard Deviation Calculator.
- Mobile Friendly: Works perfectly and beautifully on your smartphone, tablet, or desktop.
- Privacy First: All calculations are performed directly in your browser. No personal data is sent to our servers.