Listed Below Are the Arrival Delay Times (In Minutes)of Randomly $\begin{array} { l l l l l l l l } - 15 & - 18 & - 32 & - 21 & - 9 & - 32 & 11 & 2\end{array}$

Essay

Listed below are the arrival delay times (in minutes)of randomly selected flights between New York's JFK airport to Los Angeles (LAX). Negative values correspond to flights that arrive before their schedule time and positive values represent delays. Calculate the range of the data and the standard deviation. Can the standard deviation be negative? $\begin{array} { l l l l l l l l } - 15 & - 18 & - 32 & - 21 & - 9 & - 32 & 11 & 2\end{array}$