Mathematics - Statistics Question with Solution | TestHub

For a statistical data ${\mathrm{x}}_1,{\mathrm{x}}_2,\dots ,{\mathrm{x}}_{10}$ of 10 values, a student obtained the mean as 5.5 and ${\sum }_{i=1}^{10}{x}_i^2=371$. He later found that he had noted two values in the data incorrectly as 4 and 5 , instead of the correct values 6 and 8 , respectively. The variance of the corrected data is