Following Is the Five-Number Summary of Salaries (In $) for a Sample

Following is the five-number summary of salaries (in $) for a sample of U.S.
marketing managers displayed in question 1. $$\begin{array} { | c | c | c | c | c | } \hline \text { Min } & \text { Q1 } & \text { Median } & \text { Q3 } & \text { Max } \\\hline 46360 & 69693 & 77020 & 91750 & 129420 \\\hline\end{array}$$
A. Would you expect the mean salary for this sample of marketing managers to be higher
or lower than the median? Explain.
b. Which would be a more appropriate measure of central tendency for these data, the
mean or median? Explain.
c. Calculate the range.
d. Calculate the IQR.