Plan: Introduction The following section: The nature and importance of average quantities. Average arithmetic quantities and their fields of application. Arithmetic properties of the average

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1^Kudryavsev V.A., Demidovich V.R. Kratki course advanced mathematician.- Moscow: Nauka, 1985.

2^ Cherskasov A.N. Introduction to higher mathematics. - Moscow: Nauka, 1964.

3^ Sakharnikov N.A. Higher mathematics. – Leningrad, 1973.

4^ Loboskaya N.L. Basic advanced mathematician. - Minsk, 1978.