3 Assume that X and Y are bivariately normally distributed variables, you are provided with the z-normalization for both variables: 1.5 for X and 2.4 for Y. Below is the data for both variables: X Y 5 7 3 5 2 7 6 5 Based on the provided data, calculate the following a) Covariance Matrix b) Joint bivariate density Note: Show all steps during your calculations