A box contains 5 red, 7 blue, and 8 green marbles. If one marble is drawn at random, what is the probability it is not blue?

Sat, 18 Apr 2026 05:55:29 +0000

**A box contains 5 red, 7 blue, and 8 green marbles. If one marble is drawn at random, what is the probability it is not blue? Why This Question Matters in Everyday Math and Real Life** Ever wonder how simple math shapes our daily decisions—and why a question about marbles can matter more than it seems? The short answer to “What’s the chance a random pick isn’t blue?” is rooted in basic probability, but its relevance runs deeper than a classroom question. In the US, where curiosity drives discovery through platforms like Discover, this classic marble problem mirrors trends in data literacy, critical thinking, and even fintech or game design—where chance and odds shape real-world choices. People are drawn to these questions not just for numbers, but because they represent decision-making under uncertainty. Whether choosing a platform, analyzing market odds, or exploring educational content, understanding how to calculate “not blue” reinforces foundational logic and builds confidence in interpreting data. ### Why This Marble Set Sparks Interest Across the US