A percentage calculated from ten drawings can look just as polished as one calculated from a thousand. The decimal places do not tell you whether the sample is large enough to support the conclusion.

Small samples swing quickly

If a number appears twice in ten draws, one additional appearance changes its rate substantially. The same extra appearance has far less effect in a much larger archive.

The time window changes the question

A short window describes recent records; a long window describes broader history. Neither automatically predicts the next draw, and mixing them without labels creates confusion.

Report counts beside percentages

“20%” is easier to judge when the page also says “2 of 10 draws.” Include the game rules, date range and missing-record status so readers can understand the denominator.

How to use this information

Keep the article beside the original result, rule page or official archive you are checking. Record the game and date, separate published facts from interpretations, and follow the authorized operator when a prize, deadline or ticket verification is involved.

Bottom line: sample size does not make past frequency predictive, but it does determine how stable and interpretable the historical summary is.