Solved: In Exercises 520, find the range, variance, and
Chapter 3, Problem 17(choose chapter or problem)
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. JFk to lAX Flight Delays Listed below are the arrival delay times (in minutes) of randomlyselected American Airline flights from New Yorks JFK airport to Los Angeles (LAX).Negative values correspond to flights that arrived early before the scheduled arrival time, andpositive values represent lengths of delays. (The data are from the Bureau of Transportation,and more data are listed in Data Set 15 in Appendix B.) Some of the sample values are negative,but can the standard deviation ever be negative?-15 -18 -32 -21 -9 -32 11 2
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