This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- How to differentiate standard column aggregators from row-by-row iterator functions in DAX for the PL-300 exam.
- How to construct SUMX, AVERAGEX, MINX, MAXX, and COUNTX expressions using table contexts and row evaluations.
- Key techniques for avoiding common RANKX traps by correctly applying ALL and ALLSELECTED functions.
- How to select appropriate statistical functions including MEDIAN, percentiles, sample variance, and population standard deviation.
- A quick memory rule to instantly spot when row context evaluation is required on exam questions.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
