PySpark and AWS: Master Big Data with PySpark and AWS - Total Marks per Course

The video tutorial explains how to calculate the total marks achieved by students per course using key-value pairs and the reduce by key function. It demonstrates the process of mapping course names to their respective marks and then summing these marks using a Lambda function. The tutorial concludes with a brief overview of the next steps, which involve calculating average marks per course.

Explain how the total marks achieved per course are calculated.

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What will be the outcome of the transformation discussed in the video?

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