Calculate, interpret and explain descriptive measures for both populations and samples, such as mean, median, mode, range, standard deviation, etc.•Suppose a class were divided into two groups, and the ages of each group were numerically summarized: Group 1 has a mean age of 25, a median age of 25, and a standard deviation of 3.Group 2 has a mean age of 29, a median age of 23, and a standard deviation of 5.•Only one group has a student who was born before 1970. Which group is it, and how do you know?
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