1. What is a Python library?

2. Why is Python such a popular language?

3. What function(s) would print out the total missing data values for all columns of the data frame main_data?

4. We have a data frame called df. Which pandas property is used to check the columns’ data types?

5. Which is not important when writing Python code?

6. We have a data frame called df, choose the correct pandas property that shows you the number of rows and columns in the data frame.

7. Which data structure is [1,2,3,4].

8. Before using pandas which code must first be run to make the library available?

9. How do you print “X is large” if $X$ is greater than 28 in Python?

10. How can wel tell what version of python we aer currently using?

11. Suppose you have a data frame named dfWhat does the following method do to the data frame df.head(12).

12. Which data structure is {'one':1, 'two':2}.

13. Which command will grab the last few rows of a dataframe?

14. Which of the following is not a comparison operator (these return a boolean value of true or false).

15. What datatype would the following variable have main_data=read.csv("path/to/myfile.csv")