In a frequency distribution of X series having 6 integers with missing one, Xi, among them, the parameters of calculating mean, X, are as Σfx=370 (excluding frequency of missing Xi which is fi=10), Σf=58 (including frequency of missing integer) and X =7.586. Which one of the following inters is approximately correct for missing Xi?

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In a frequency distribution of X series having 6 integers with missing one, Xi, among them, the parameters of calculating mean, X, are as Σ<em>f</em>x=370 (excluding frequency of missing Xi which is <em>f</em>i=10), Σ<em>f</em>=58 (including frequency of missing integer) and X =7.586. Which one of the following inters is approximately correct for missing Xi?