Generate a 2 dimensional 2 class data set for multivariate normal distribution with 1000 examples for each class without using built in function mvnpdf where and plot the data set

Generate a 2 dimensional 2 class data set with 1000 examples for each class without using built in function mvnpdf where and plot the data set

 μ_1=[1 2],μ_2=[3 5] and

            Σ_1=  [2  1
                  1   3],     Σ_2=   [1   -0.8
                                      -0.8  3]