[OC] For small sample sizes, a coin can appear to 'favor' tails after a run of heads. This bias disappears as the sample increases. But how long it takes depends on the length of the run of heads. Simulation results for runs of 3, 5, 10, and 15 heads in a row.
from /r/dataisbeautiful
[OC]對於小規模的樣本來說，一枚硬幣在出現正面後會顯得 "偏愛 "反面。隨着樣本的增加，這種偏見也會消失。但這需要多長時間取決於正面的運行長度。連續3、5、10和15個正面的模擬結果。