How to use this tool
Check the units, enter your values, and run the tool. Results follow the assumptions and method below.
Calculation method
Both boys given at least one boy
p^2/(1-(1-p)^2)Boy or Girl Paradox
Random two-child family,independent sexes,and only the condition at least one boy; distinct from meeting a random child.
Random two-child family,independent sexes,and only the condition at least one boy; distinct from meeting a random child.
Result
Enter your values and run the tool to see your result.