Decimal Random Number Generator
Generate uniformly distributed random decimal numbers with customizable precision and range
Generator Configuration
How many random numbers to generate
Set to 0 for integers
Quick Presets
Understanding Random Number Generation
Pseudo-Random Numbers
Computer-generated random numbers are actually "pseudo-random" - they follow deterministic algorithms that produce sequences indistinguishable from truly random numbers for most practical purposes.
Uniform Distribution
Our generator produces numbers following a uniform distribution, meaning each value within the specified range has equal probability of being selected.
Statistical Properties
- •Mean should approach (min + max) / 2
- •Standard deviation: (max - min) / √12
- •Duplicates are rare for continuous distributions
Generation Algorithm
Basic Formula:
random_value = min + random() * (max - min)
rounded_value = round(random_value * 10^precision) / 10^precision
Applications
- •Statistical sampling and simulation
- •Monte Carlo methods
- •Game development and testing
- •Cryptography and security (with proper seeds)
Quality Measures
The chi-squared test helps evaluate how well the generated numbers follow a uniform distribution. Lower values indicate better uniformity.