हल करना S j(n j ) ^ 2 = sum(x i - overline x j(n) )^ 2 n j -1 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$S_{j(n_{j})}^{2}=\frac{\sum(x_{i}-\overline{x}_{j(n)})^{2}}{n_{j}-1}$$