[abdullahkhalids]

Accuracy depends only on sample size, not the total population size. A 1k sample gives you a 95% confidence interval [1].

[1] https://stats.stackexchange.com/questions/166/how-do-you-dec...

[alephnerd]

To add to this, check out the Central Limit Theorem [0].

[0] - https://statisticsbyjim.com/basics/central-limit-theorem/