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Clearnote
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Junior High
Mathematics
想問這兩題
Mathematics
Junior High
7 monthsago
昕
想問這兩題
米基礎題|4 24 袋中有相同的紅球5個、白球3個,每次從 袋中取一球,連續取兩次, 求取後不放回的機率 , 承基礎題4 顆白球的機率分別為多少? 兩種情形下取到一顆紅球與 別 (1)第一次取後放回; (2)第一次取後不放回; 解8 上述兩種條件下,第一次取到紅球且第二次 取到白球的機率分別為多少? 解
Answers
綾
7 monthsago
如圖
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