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MMLU-Pro / 7885 / An urn contains 10 red and 10 white balls. The balls are drawn from the urn at…

Problem

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

question

An urn contains 10 red and 10 white balls. The balls are drawn from the urn at random, one at a time. Find the probability that the fourth white ball is the fourth ball drawn if the sampling is done with replacement.

category

math

options

  1. $\frac{1}{256}$
  2. $\frac{1}{128}$
  3. $\frac{1}{64}$
  4. $\frac{3}{16}$
  5. $\frac{1}{8}$
  6. $\frac{1}{16}$
  7. $\frac{1}{2}$
  8. $\frac{1}{32}$
  9. $\frac{5}{32}$
  10. $\frac{1}{4}$

src

scibench-stat

Discussion

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Source and history

upstream_id / Original problem ID
7885
task_id
fe1e7f68-051b-53e0-9ee8-ebefdf4a459b
task_key
default--test--7885
task_revision_id
1
config / split
default / test

Official source

initial import