Please answer the following question, thanks?
回答 (1)
2021-01-24 9:37 pm
✔ 最佳答案
(a)C(7+13,1) × C(8+7,1) = 20 × 15 = 300
(b)
Number of cases where all items are from boutique A
= 7 × 8 = 56
The required number of cases that at least one item is from boutique B
= 300 - 56 = 244
收錄日期: 2021-04-23 23:44:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20210124094050AAjvW0r