If x₁, x₂, x_n are ' n ' observations and x is their mean. If _ i=1 ^n (x₁- x )^2 is almost zero, then a true statement among the following is

Options

1. AIt indicates a higher degree of dispersion of the observations from the mean x
2. BIt indicates that there is no dispersion
3. C_ i =1 ^ m ( x _ i - x )^2 is the arithmetic mean of the data
4. DIt indicates that each observation x_i is very close to the mean x and hence degree of dispersion is low.