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A Shopping Mall sells trays of eggs of which some are returned because they are defective...

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Statistics

A Shopping Mall sells trays of eggs of which some are returnedbecause they are defective and it has been observed that 15% of thetrays are defectives. The defective and no defective trays whereobserved on a random manner. If 8 trays are randomly collected,Find :-

a) The probability that exactly 2 of them are defective

b) The probability that at least 3 are defective

c) The probability that at most 2 are defective

d) The probability that no tray is defective

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