1. Following are the MCAS scores of 30 seventh-grade students enrolled in a Boston-area charter school. Calculate the
mean, median, and mode of this distribution. Write a paragraph interpreting your findings.
90, 65, 10, 15, 85, 90, 75, 20, 75, 20, 95, 5, 75, 70, 65, 75, 80, 10, 15, 60, 50, 75, 15, 80, 90, 85, 45, 75, 70, 65
2. The following data represent the number of students who showed up at ten recent colloquia organized by the Political
Science Department to discuss America’s war against terrorism. Calculate the mean, median, mode, range, standard
deviation, and variance. Write a paragraph explaining the implications of your computations for those who are planning
the next series of colloquia.
50, 30, 20, 30, 40, 70, 60, 80, 40, 30
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