Tip: Population standard deviation: 0= 5. Find the range of dispersion and the population standard deviation of the following data: 10, 7, 11, 8, 5, 7. σ= Σ (x1-x)² fl 71 fi = 1 (x₁-x)² + (x₂-x)²++ (x₂-x)²+ 71 X₁ 5 7 7 8 10 11 Σ = אן 8 8 x₁-x (x₁ - x)² -3 -1 Σ = 9 Σ =

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