Let \(\bar x\), M and \(\sigma^2\) be respectively the mean, mode and variance of n observations \(x_1,x_2,\ldots,x_n\) and \(d_i=-x_i-a,\ i=1,2,\ldots,n\), where a is any number.
Statement I : Variance of \(d_1,d_2,\ldots,d_n\) is \(\sigma^2\).
Statement II : Mean and mode of \(d_1,d_2,\ldots,d_n\) are \(-\bar x-a\) and \(-M-a\), respectively.