Each of 12 refrigerators of a certain type have been

Reference no: EM13626490

Each of 12 refrigerators of a certain type have been returned to the distributor because of loud noise. Suppose that 7 of these have defected compressor and 5 have a broken ice cube tray. The refigerators will be excamined one by one in ramdon order. Let X be number amoung the first 6 examined that have a defective compressor. Calculate :

1) P(x=5)

2) P(<= 4)

3) The expected value ot X

Reference no: EM13626490

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