Question: The Air Transport Association of America publishes figures on the busiest airports in the United States. The following frequency distribution has been constructed from these figures for a recent year. Assume these are population data.
![1078_26.png](https://secure.tutorsglobe.com/CMSImages/1078_26.png)
a. Calculate the mean of these data.
b. Calculate the mode.
c. Calculate the median.
d. Calculate the variance.
e. Calculate the standard deviation.