The lengths of adult males' hands are standard deviation is 7.2 mm. Suppose that 47 individuals are Round all answers to 4 where possible. normally distributed with mean 185 mm and randomly chosen a. What is the distribution of ä? E ~ N( b. For the group of 47, find the probability that the average hand length is less than 183 c. Find the first quartile for the average adult male hand length for this sample size

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