Update weekly-challenge-4.md

04_process-data/04_verify-and-report-your-cleaning-results/graded-assessment/weekly-challenge-4.md

@@ -100,4 +100,172 @@ Reviewing version history is an effective way to view a changelog in SQL.
 * True
 * **False** 
 
-> Reviewing version history is an effective way to view a changelog in spreadsheets.
+> Reviewing version history is an effective way to view a changelog in spreadsheets.
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+Fill in the blank: A data analyst finishes cleaning their data. The next step in the process is reporting and ____. 
+
+1 / 1 point
+
+manipulation 
+
+
+replacing
+
+
+[X] verification
+
+
+processing 
+
+Correct
+2.
+Question 2
+As a data analyst, you will need to keep the big picture in mind throughout any project when verifying data cleaning. What must the analyst do to take a big picture view of the project? Select all that apply.
+
+1 / 1 point
+
+[X] Consider the goal
+
+Correct
+
+Consider the reporting
+
+
+[X] Consider the data
+
+Correct
+
+[X] Consider the business problem
+
+Correct
+3.
+Question 3
+Which of the following functions automatically removes extra spaces when cleaning data? 
+
+1 / 1 point
+
+SNIP
+
+
+CLEAR
+
+
+[X] TRIM
+
+
+REMOVE
+
+Correct
+4.
+Question 4
+A data analyst uses the COUNTA function to count which of the following? 
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+1 / 1 point
+
+The total number of headers in a specific range
+
+
+The total number of entries in a changelog
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+
+The specific numbers in a dataset
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+
+[X] The total number of values within a specified range
+
+Correct
+5.
+Question 5
+Which of the following queries  considers one or more conditions and returns a value as soon as that condition is met?
+
+1 / 1 point
+
+SELECT * WHEN CASE COLUMN = VARIABLE
+
+
+SELECT * IF CASE COLUMN = VARIABLE
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+
+SELECT * CASE IF COLUMN = VARIABLE
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+[X] SELECT * CASE WHEN COLUMN = VARIABLE
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+Correct
+6.
+Question 6
+What is the process of tracking changes, additions, deletions, and errors during data cleaning? 
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+1 / 1 point
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+[X] Documentation
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+Observation
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+Recording
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+Cataloging
+
+Correct
+7.
+Question 7
+A data analyst is in the verification process and needs to verify the modifications that they have made to the data. What could the analyst reference to find the changes they made throughout data cleaning?
+
+1 / 1 point
+
+Notepad
+
+
+Metadata
+
+
+[X] Changelog
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+
+Spreadsheet
+
+Correct
+8.
+Question 8
+You use SQL to clean your data. You make comments whenever you modify your queries to keep track of any changes. What documentation will this practice help you create when you’re done cleaning the data?
+
+1 / 1 point
+
+A query repository
+
+
+A new dataset
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+A database
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+[X] A changelog
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+Correct