# There are 17 assignments in this course
############ ASSIGNMENT # xyz #############
# Assignment#xyz description
#*****your code here******#
# Throughout the code, there are points where you are expectedto insert your own code in the file.
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#A########### TUTORIAL + Assignments on Data Frames#############
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## What are Data Frames
# A data frame is the most common way of storing data in R and,generally, is the data structure most often
# used for data analyses. Under the hood, a data frame is a list ofequal-length vectors . Each element of the
# list can be thought of as a column and the length of each elementof the list is