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MMLU-Pro / 7887 / An urn contains four colored balls: two orange and two blue. Two balls are…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

An urn contains four colored balls: two orange and two blue. Two balls are selected at random without replacement, and you are told that at least one of them is orange. What is the probability that the other ball is also orange?

category

math

options

  1. $\frac{3}{4}$
  2. $\frac{3}{5}$
  3. $\frac{1}{4}$
  4. $\frac{1}{2}$
  5. $\frac{1}{6}$
  6. $\frac{1}{5}$
  7. $\frac{2}{5}$
  8. $\frac{1}{3}$
  9. $\frac{2}{3}$
  10. $\frac{5}{6}$

src

scibench-stat

Discussion

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Source and history

upstream_id / Original problem ID
7887
task_id
86a77cc8-3868-5b0b-8f42-c29e328772cd
task_key
default--test--7887
task_revision_id
1
config / split
default / test

Official source

initial import