The sum of all deviations from the arithmetic mean of the numerical sequence 4, 6, 51, 77, 90, 93, 95, 109, 113, 117 is:

Correct answer:

x =  0

Step-by-step explanation:

Σx=755 xˉ=Σx/10=75.5  Δ1=75.54=71.5 Δ2=75.56=69.5 Δ3=75.551=24.5 Δ4=75.577=1.5 Δ5=75.590=14.5 Δ6=75.593=17.5 Δ7=75.595=19.5 Δ8=75.5109=33.5 Δ9=75.5113=37.5 Δ10=75.5117=41.5  x=ΣΔi=0

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