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3 items are drawn in randomly from a population of 7 items. The item drawn may be defective or non-defective. Random variable is the occurrence
3 items are drawn in randomly from a population of 7 items. The item drawn may be defective or non-defective. Random variable is the occurrence of non-defective items.
Find:
(a). Make a frequency distribution table of the random variable
(b). Find the expected value of non-defective items in the random experiment.
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