Q33Single correct3 Marks25 Feb 2024Consider a dataset of 505050 items. Suppose ∑(xi−xˉ)2=8\sum (x_i-\bar{x})^2=8∑(xi−xˉ)2=8 and ∑xi=20\sum x_i=20∑xi=20. Find the mean xˉ\bar{x}xˉ and population standard deviation σ\sigmaσ of the dataset.Axˉ=20, σ=8\bar{x}=20,\ \sigma=8xˉ=20, σ=8Bxˉ=1000, σ=0.4\bar{x}=1000,\ \sigma=0.4xˉ=1000, σ=0.4Cxˉ=0.4, σ=0.4\bar{x}=0.4,\ \sigma=0.4xˉ=0.4, σ=0.4Dxˉ=2.5, σ=0.4\bar{x}=2.5,\ \sigma=0.4xˉ=2.5, σ=0.4
