|
So a better model is tossing coins a 1000 times.
|
|
Shift over coin toss by 200 so results lie in range 201..1200 as in the Dice accumulation.
|
|
Now the frequency distribution is narrower.
|
|
It is still a beautiful bell shaped Gaussian but the percentage error is 1.6% not 2.4%.
|
|
You will get better answers from asking 1 person from 1000 households rather than 5 people from each of 200 households.
|
|
Actually Dice are not a very good representation of polling, as a result with 1000 cells corresponds to only 200 Dice
|
|
This is like polling where you went to 200 households and asked 5 people in each household. It is not 1000 independent samples.
|
|
+16
|
|
-16
|
|
700 Mean
|
|
1000 Tosses Count Number of Heads
|
|
Add 200
|
