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DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #155
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #155: Real Exam Question with Answer & Explanation
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Performing Data Aggregations with Spark DataFrames and SQL
Question
Which of the following operations calculates the simple average of a group of values, like a column?
Options
- AsimpleAvg()
- Bmean()
- Cagg()
- Daverage()
- EapproxMean()
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Topics
#Spark DataFrames#Aggregate Functions#Statistical Operations#PySpark