5. Suppose that X is a discrete random variable with the following probability mass function: where 001 is a parameter. X 0 1 2 3 P(X) 20/3 0/3 2(1-0)/3 (1-0)/3 The following 10 independent observations were taken from such a distribution: (3, 0, 2, 1, 3, 2, 1, 0, 2, 1). What is the maximum likelihood estimate of 0.