Are flight delays related to visibility or wind?

Well done! You've painlessly added some new data to your xts object. It gets easier every time!

The plot on the right shows the fruits of your labor: the percentage of delayed flights (which you calculated in the previous chapter), the average wind speed in Boston, and the average visibility, all on a monthly basis from 2010 through 2015.

After manipulating and exploring the data, it's time to report back to your client. Which of the following conclusions would you draw from this plot?

Possible Answers

There is no clear relationship between visibility and flight delays.
Higher wind speeds show a weak correlation with percentage of delayed flights, but further analysis is required.
Neither wind nor visibility can explain the high percentage of flights delayed in early 2011.
We have reason to doubt the quality of data on visibility prior to 2012.
All of the above.

Exercise

Are flight delays related to visibility or wind?

Instructions

Possible Answers