It means no central key
D. Multi Meter
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A centrally planning agency is an economic system in which decisions are made by a central authority rather than by market participants.
a centrally planned economy is an economy where the decisiona on what to produce , how to produce and for whom are taking by the government
The mean is essentially a model of your data set. ... An important property of the mean is that it includes every value in your data set as part of the calculation. In addition, the mean is the only measure of central tendency where the sum of the deviations of each value from the mean is always zero.
D. Multi Met...