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  • https://stats.libretexts.org/Courses/Fresno_City_College/Book%3A_Business_Statistics_Customized_(OpenStax)/02%3A_Descriptive_Statistics/2.10%3A_Chapter_Formula_Review
    Formulas for Population Standard Deviation \(\sigma=\sqrt{\frac{\Sigma(x-\mu)^{2}}{N}} \text { or } \sigma=\sqrt{\frac{\Sigma f(x \mu)^{2}}{N}} \text { or } \sigma=\sqrt{\frac{\sum_{i=1}^{N} x_{i}^{2}...Formulas for Population Standard Deviation σ=Σ(xμ)2N or σ=Σf(xμ)2N or σ=Ni=1x2iNμ2F For the population standard deviation, the denominator is N, the number of items in the population.
  • https://stats.libretexts.org/Courses/Fresno_City_College/Introduction_to_Business_Statistics_-_OER_-_Spring_2023/02%3A_Descriptive_Statistics/2.10%3A_Chapter_Formula_Review
    Formulas for Population Standard Deviation \(\sigma=\sqrt{\frac{\Sigma(x-\mu)^{2}}{N}} \text { or } \sigma=\sqrt{\frac{\Sigma f(x \mu)^{2}}{N}} \text { or } \sigma=\sqrt{\frac{\sum_{i=1}^{N} x_{i}^{2}...Formulas for Population Standard Deviation σ=Σ(xμ)2N or σ=Σf(xμ)2N or σ=Ni=1x2iNμ2F For the population standard deviation, the denominator is N, the number of items in the population.

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