Lemma
MediumCounting & chance
AQuA-RAT train #52202 · Probability · Counting & chance

A box held 20 blue marbles and 30 red marbles

A box held 20 blue marbles and 30 red marbles. One marble is drawn at random. What is the probability that the marble is red?

~8 minAnswer checked instantly

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #52202

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your answer

Checked against the answer in AQuA-RAT.