問題詳情
27. 阿美自一袋中取球,以每次取出數球且取後放回的方式,任取5次。若某次取出的球數以x表示;該次取球未放回前,袋內所剩的球數以y表示,且將每次的取球情況寫成數對(x,y)並畫在座標平面上,則此圖可能是下列哪一圖形?
(A)
(B)
(C)
(D)
(A)
(B)
(C)
(D)
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