Given that the average of 3,2,7,2x and 8 is 6, what is the variance of this group of data

Given that the average of 3,2,7,2x and 8 is 6, what is the variance of this group of data

3 + 2 + 7 + 2x + 8 = 6 × 5  x = 5 Variance = 1 / 5 [(3-6) & # 178; + (2-6) & # 178; + (7-6) & # 178; + (10-6) & # 178; + (8-6) & # 178;] = 1 / 5 (9 + 16 + 1 + 16 + 4) = 46 / 5, if you are satisfied, please click [satisfied]; if you are not satisfied, please point out that I will