The proportion of impurities in each manufactured unit of a certain kind of chemical product is a random variable with probability density function S (0+1)x 0<<2< 1, f(r; 0) = otherwise, where. Five units of the manufactured product are taken in one day, resulting the next impurity proportions: a. Obtain the estimator of by the method of the moments. b. Obtain the maximum likelihood estimator of.

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