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[" From a lot of 10items containing 3def...

[" From a lot of 10items containing 3defectives,a sample of 4items is drawn at random."],[" Let the random variable "X" denote the number of defective items in the sample.If the "],[" items in the sample are drawn one by one without replacement,find: "],[" (a) probability distribution of "X" .(b) mean of "X" .(c) Var."]

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