Mathematics, 16.10.2019 05:30, jaydenbomkamp6084

Each of 12 refrigerators of a certain type has been returned to a distributor because of an audible, highpitched, oscillating noise when the refrigerators are running. suppose that 7 of these refrigerators have a defective compressor and the other 5 have less serious problems. if the refrigerators are examined in random order, let x be the number among the first 6 examined that have a defective compressor. what is the probability that x exceeds its mean valueby more than 1 standard deviation?

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Each of 12 refrigerators of a certain type has been returned to a distributor because of an audible,...