code: function(n) {
                      n = this._v(n, "n");
  
                      var toReturn = [];
  
                      for(var i=0; i<n; i++) {
                          toReturn[i] = this.rexp(1, this.prng())[0];
                      }
  
                      return toReturn
                  }
docs: http://www.statisticsblog.com/2013/05/uncovering-the-unreliable-friend-distribution-a-case-study-in-the-limits-of-mc-methods/ 
  
  The Unrelaible Friend distribution
  @param n
  @returns {Array} Random variates array