Make the part of Diagnostic Test - - Quantitative yesterday , discover a problem, many mathematicses describe to see , do not understand for example the mean, the median and the standard deviation, see do not understand , naturally, have no way of doing problem, some place is guessed groundlessly: (, still some problem is very simple, for example, ' s revenue in 5of its revenue in December and its revenue in January its revenue in November , then the store' s revenue in December was how many times of if a certain toy Of its revenues in November and January? In this problem, I am to
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