Confidential database:

Tiny County pop: tbd
f: tbd
m: tbd
Ruralland pop: tbd
f: tbd
m: tbd
Urbanville pop: tbd
f: tbd
m: tbd
RBlock
pop:
tbd
f:
m:
RBlock
pop:
tbd
f:
m:
RBlock
pop:
tbd
f:
m:
UBlock
pop:
tbd
f:
m:
UBlock
pop:
tbd
f:
m:
UBlock
pop:
tbd
f:
m:

Noise Barrier

ε

Published official tabulations:

Tiny County pop: tbd
f: tbd
m: tbd
Ruralland pop: tbd
f: tbd
m: tbd
Urbanville pop: tbd
f: tbd
m: tbd
RBlock
pop:
tbd
f: tbd
m: tbd
RBlock
pop:
tbd
f: tbd
m: tbd
RBlock
pop:
tbd
f: tbd
m: tbd
UBlock
pop:
tbd
f: tbd
m: tbd
UBlock
pop:
tbd
f: tbd
m: tbd
UBlock
pop:
tbd
f: tbd
m: tbd

Each rectangle shows the population statistics for a different geographical area. The top is the total population (pop), followed by the number of females (f) and the number of males (m).

ε specifies the privacy loss budget. Click privatize! to re-run the privacy mechanism with a different set of random noises.

Try changng the number of females or males that was counted on a block and see how it changes the official tabulations. Or choose one of the sample scenarios listed below.

selectscenario
balanced rural and urban blocks
One rural block with a LOT of males.
One urban block with a LOT of females.