If \( x_{i}^{\prime} s \) are the midpoints of the class intervals of grouped data \( \mathrm{f}... VIDEO
If \( x_{i}^{\prime} s \) are the midpoints of the class intervals of grouped data \( \mathrm{f}_{\mathrm{i}}^{\prime} \mathrm{s} \) are the corresponding frequencies and \( \overline{\mathrm{X}} \) is the mean, then \( \Sigma\left(\mathrm{f}_{\mathrm{i}} \mathrm{x}_{\mathrm{i}}-\overline{\mathrm{X}}\right) \) is equal tohttps://bit.ly/YTAI_PWAP https://www.pw.live
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\begin{tabular}{|c|c|c|c|c|c|}
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