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what is the probability that headway is within 1 standard deviation of the mean value?求数学英语牛what is the probability that headway is within 1 standard deviation of the mean value?这题到底问啥啊这是个概率统计的题目。

题目详情
what is the probability that headway is within 1 standard deviation of the mean value?求数学英语牛
what is the probability that headway is within 1 standard deviation of the mean value?这题到底问啥啊
这是个概率统计的题目。
▼优质解答
答案和解析
净空高度比平均值不超过1个标准偏差的可能性有多大?