Word: users
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Dates: during 1900-1909
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...wages question is perhaps the most important branch of political economy and its subjective treatment is attained by the use of statistics. But it is essential that the user of statistics should understand the proper method for constructing them, and the attendant difficulties. There are four great sources of error which are to be avoided in securing statistics. First, observation is not trustworthy; there must be reliable figures and they should cover a considerable space of time. Second, the distinction must be kept in mind between "average" and "arithmetical mean." Third, in dealing with percentages the basic numbers must...