| A Polling Problem |
|
|
|
|
|
|
|
|
|
|
|
|
| l | Population of
size m |
||||||||||
| l | Subset of c red members |
||||||||||
| l | Goal: estimate c |
||||||||||
| l | Naïve method:
check whole population |
||||||||||
| l | Faster method:
sampling |
||||||||||
| » | Choose random
subset of population |
||||||||||
| » | Use relative
frequency in sample as |
||||||||||
| estimate for
frequency in population |
|||||||||||
