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家到工作出行时间: mu = 30 分钟、 sigma = 5 分钟。使用切比雪夫不等式作为保守界,提前多少分钟出发来保证至少95%的到达机会?
家到工作出行时间: mu = 30 分钟、 sigma = 5 分钟。使用切比雪夫不等式作为保守界,提前多少分钟出发来保证至少95%的到达机会?
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