英语数学概率题Two cards are drawn simultaneously from a standard pa
英语数学概率题
Two cards are drawn simultaneously from a standard pack of 52 playing cards.Use a tree diagram to find the probablity that:
(A)Both are hearts.
(B)Just one is a heart
Two cards are drawn simultaneously from a standard pack of 52 playing cards.Use a tree diagram to find the probablity that:
(A)Both are hearts.
(B)Just one is a heart
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