Private
Survey Sample Size
504
Determine required survey sample size for desired confidence level
NOTEModel Overview
VARIABLEConfidence Level
uniform
Confidence level (0.90-0.99)
conf
VARIABLEMargin of Error
uniform
Acceptable margin of error
margin
CONSTANTPopulation Proportion
0.5
p
FORMULASample Size
ceil((conf * 2) ^ 2 * p * (1 - p) / margin ^ 2)
conf
p
margin
sample
OUTPUTRequired Sample
Required Sample Size
About the creator
The team behind Carlo. We believe everyone deserves tools to reason about risk and uncertainty.
What is Carlo?
Carlo is a visual tool for Monte Carlo simulation. Model uncertainty by dragging probability distributions, connecting them visually, and running thousands of scenarios instantly.