Question on: JAMB Economics - 2017
(\frac{∑f(x-x̄)}{N})
Is a formula used to calculate for ____________
A
variance
B
the quartile
C
standard deviation
D
mean deviation
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Correct Option: D
where;
N = number of items in the distribution
X = is variable
x̄ = Arithmetic mean
∑ = sum of
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