جميع النصائح اليومية
نصيحة البحث اليومية
الإحصاء10 سبتمبر 2026
When events are rare or cells are sparse, ask about exact methods instead of large-sample approximations. Standard chi-square tests behave badly with very small counts.
نصيحة البحث اليومية
الإحصاءWhen events are rare or cells are sparse, ask about exact methods instead of large-sample approximations. Standard chi-square tests behave badly with very small counts.