14*14+5*5+6*6=257
257/3=85,67
^85,67=~9,25
^2 = 14
5^2 = 25
6^2 = 36
14+25+36=75
Среднее квадратичное:
= 5
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14*14+5*5+6*6=257
257/3=85,67
^85,67=~9,25
^2 = 14
5^2 = 25
6^2 = 36
14+25+36=75
Среднее квадратичное:
= 5