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Part 1 of 4 Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean u and standard deviation o. Also, use the range rule of thumb to find the minimum usual value u - 20 and the maximum usual value u + 20. n = 160, p = 0.5 H = 4 672 (Do not round.)