Data Profiling with COUNT & SUMPRODUCT in Excel

The video tutorial covers data profiling using advanced Excel functions like COUNT and SUMPRODUCT. It explains the concept of data profiling, its importance, and various techniques used to ensure data quality. The tutorial demonstrates how to use Power Query Editor for data analysis and highlights common data errors and their resolutions. It also provides practical examples of applying Excel commands to analyze and clean data effectively.

What is the primary purpose of data profiling?

• To visualize data trends

• To delete unnecessary data

• To review and assess data quality

• To create new data

Which of the following is NOT a technique used in data profiling?

• Standard deviation

• Mean mode

• Frequency count

• Data visualization

What does a null value in a data column indicate?

• The data is outdated

• The data is incorrect

• The data is missing

• The data is duplicated

Which Excel function is used to count non-empty cells?

• SUMPRODUCT

• COUNTBLANK

• COUNT

• COUNTA

What is the result of applying the SUMPRODUCT function to a range with blank cells?

• A multiplication of all values

• A count of unique values

• A division error

• A sum of all values

How can you resolve a division error in the SUMPRODUCT function?

• By using a different function

• By changing the data type

• By inserting data into blank cells

• By deleting the range

What is the purpose of using the 'remove duplicates' feature in Excel?

• To delete all data

• To highlight errors

• To find and remove duplicate values

• To format the data