Navy OAR Exam Prep 11, Averages Weighted Means and Mixtures

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: - That combined average, weighted mean, and mixture problems all follow the same principle: never average the averages. - How to set up weighted average calculations by multiplying each value by its respective weight before summing and dividing by the total weight. - The correct method for setting up mixture problems by creating an equation that balances the concentration and quantity of the components with the final mixture's properties. - To recognize the common exam trap of simply averaging percentages or scores without accounting for different quantities or weights. - To apply the 'Total Value' shortcut by tracking both the total quantity and the total weighted value to simplify complex problems, including replacement scenarios. 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