同類風險單位的數目越多，實際損失便越接近預期損失的原理。
The principle that the larger the number of similar exposure units, the closer actual losses will be to expected losses.
同類風險單位的數目越多，實際損失便越接近預期損失的原理。
The principle that the larger the number of similar exposure units, the closer actual losses will be to expected losses.