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SAT数学题,有关概率A, B, C, D ,E , F, Ga list consists of all possib
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SAT数学题,有关概率
A, B, C, D ,E , F, G
a list consists of all possible three-letter arrangements formed by using the letters above such that the first letter is D and one of the remaining letters is A. if no letter is used more than once in an arrangement in the list and one three-letter arrangement is randomly selected from the list, what is the probability that the arrangement selected will be DCA?
SAT数学题,有关概率
A, B, C, D ,E , F, G
a list consists of all possible three-letter arrangements formed by using the letters above such that the first letter is D and one of the remaining letters is A. if no letter is used more than once in an arrangement in the list and one three-letter arrangement is randomly selected from the list, what is the probability that the arrangement selected will be DCA?
A, B, C, D ,E , F, G
a list consists of all possible three-letter arrangements formed by using the letters above such that the first letter is D and one of the remaining letters is A. if no letter is used more than once in an arrangement in the list and one three-letter arrangement is randomly selected from the list, what is the probability that the arrangement selected will be DCA?
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