I wonder if the question is about MEDIAN instead of MEAN, because the latter would not give you any inference except that the biggest number is no less than the MEAN and the smallest number is not more than the MEAN. On the other hand, if you know the value of the MEDIAN of 127 numbers, then the MEAN is the value such that the number of terms having values greater than or equal to it is the same as the number of terms having values less than or equal to it. Therefore, 至多63人工资多于350,000, 至多63人工资低于350,000, 至少64人的平均工资多于或等于350,000, 至少64人的平均工资低于或等于350,000, are all correct statements.