Solved: In Exercises 520, find the range, variance, and

Chapter 3, Problem 15

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In Exercises 520, find the range, variance, and standard deviation for the given sampledata. Include appropriate units (such as minutes) in your results. (The same data wereused in Section 3-2 where we found measures of center. Here we find measures of variation.)Then answer the given questions. years to Earn Bachelors Degree Listed below are the lengths of time (in years) it tookfor a random sample of college students to earn bachelors degrees (based on data from theNational Center for Education Statistics). Based on these results, is it unusual for someone toearn a bachelors degree in 12 years?4 4 4 4 4 4 4.5 4.5 4.5 4.5 4.5 4.5 6 6 8 9 9 13 13 15

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