średnia arytmetyczna liczb 3,1,1,0,x, 0 jest równa 2 oblicz x
3, 1, 1, 0, x, 0
n = 6
śr = 2
(3+1+1+0+x+0)/6 = 2
(5+x)/6 = 2 I*6
5+x = 12
x = 12-5
x = 7
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3, 1, 1, 0, x, 0
n = 6
śr = 2
(3+1+1+0+x+0)/6 = 2
(5+x)/6 = 2 I*6
5+x = 12
x = 12-5
x = 7
====