∑f(x−x̄)N\frac{∑f(x-x̄)}{N}

Is a formula used to calculate for ____________

  • A variance
  • B the quartile
  • C standard deviation
  • D mean deviation
jamb 2017economics

The correct answer is D. mean deviation

where;

N = number of items in the distribution

X = is variable

x̄ = Arithmetic mean

∑ = sum of

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