Create and excel spreadsheet to produce a chart similar to figure 10.5 showing sample from a bivariate student t-distribution with four degree of freedom where the correlation is 0.5. Next suppose that marginal distribution of V 1 and V2 are student t with four degree of freedom but that a Gaussian copula with a copula correlation parameter of 0.5 is used to define the correlation between the two variables. Construct a chart show in the sample from the joint distribution. Compare the two charts you have produced.