20 6 15 19 16 1) Calculate the mean. μπ 2) Fill in the table below: Fill in the differences of each data value from the mean, then the squared differences. Xx x - μ 20 6 15 19 16 (x — μ)² Σ(α - μ) = 3) Calculate the population standard deviation (σ). = 0 Σ(x-μ)² N (Please round your answer to two decimal places)

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