Session 3 Quiz
Here is a short quiz that reviews some of the concepts from the first session.
You have two attempts to complete the quiz. You must get at least a 60% in order to pass and move to the next section.
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Question 1 of 5
1. Question
4. Fill in the blank below.
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A big strength of ggplot is the ability to graphs by adding layers and adjusting the data so it doesn’t look generic.
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Question 2 of 5
2. Question
5. Which function adds up the data in the previous cells to create a new column or row with cumulative sums?
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Question 3 of 5
3. Question
2. Fill in the blanks below.
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data displays multiple occurrences per row and is easier to read in tables, while data displays one observation per row and is easier to plot with in ggplot2.
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Question 4 of 5
4. Question
1. Why does R put an ‘X’ in front of numerical column names?
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Question 5 of 5
5. Question
3. Why do we use packages for data manipulation instead of just using built-in R functions?
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