3.3.17 Question Help Listed below are the arrival delay times (in minutes) of ra

Question

3.3.17 Question Help Listed below are the arrival delay times (in minutes) of randomly selected airplane flights from one airport to another, Negative values correspond to flights that arrived early before the scheduled arrival time, and positive values represent lengths of delays. Find the range, variance, and standard deviation for the set of data. Some of the sample values are negative, but can the standard deviation ever be negative? 26 27 11 13 27 The range of the sample data is minutes. (Round to one decimal place as needed.)

Explanation / Answer

  

Smallest value = -34 , largest value = -27

Range of the sample data is = largest value - smallest value

                                              = -27 - ( -34)

                                               = 7

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