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it is represented by the symbol sigma squared ?​

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Answer:

The symbol ‘σ’ represents the population standard deviation. The term ‘sqrt’ used in this statistical formula denotes square root. The term ‘Σ ( Xi – μ )2’ used in the statistical formula represents the sum of the squared deviations of the scores from their population mean.

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Answer:

It is represented by the symbol sigma squared?

σ “sigma” or σ x: standard deviation For variance, apply a squared symbol (s² or σ²). r: ρ “rho” coefficient of linear correlation: p̂ “p-hat” p: proportion: z t χ² (n/a) calculated test statistic  

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