Check-in 2

Remember, follow the instructions below and use R Markdown to create a pdf document with your code and answers to the following questions on Gradescope. You may find a template file by clicking “Code” in the top right corner of this page.

Collaborators

INSERT NAMES OF ANY COLLABORATORS

A. Flights Data

1. For this lab, we’ll be using the flights data. You can load this data using the following code:

library(nycflights13)
data(flights)

2. Use the mutate() function to turn origin into a factor.

# YOUR CODE HERE

3. Compute the mean arr_delay for each origin airport. Which airport has the longest delays on average? You can drop missing rows.

# YOUR CODE HERE

4. Use the mutate() function to turn month into a factor.

# YOUR CODE HERE

5. Compute the mean arr_delay by month. What do you notice?

# YOUR CODE HERE

6. Compute the mean arr_delay by month AND origin. What do you notice?

# YOUR CODE HERE