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From the 2010 US Census, we learn that 71.8% of the residents of Missouri are 21...

From the 2010 US Census, we learn that 71.8% of the residents of Missouri are 21 years old or over. If we take random samples of size n = 200 and calculate the proportion of the sample that is 21 years old or over, describe the shape, state the mean, and standard error of the distribution of sample proportions. (Make sure you justify your answer.)

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