Trivia Question Category Roulette

Bounded offline trivia category selection. Uses one advancing source and existing random-index calculation;explicit replacement,at most64draws,infeasibleunique requestsrejected. Repertoireis original illustrative entertainment,not completecanon,personaltraitinference,secure randomness or predictive truth.

Description

Trivia categories guide which subject a group asks about next.

Trivia categories guide which subject a group asks about next.^[1]

This tool selects among six stored category labels without generating questions or checking answers.

When to use Trivia Question Category Roulette

Use this tool to draw reproducible entries from the documented fixed inventory.

How to use Trivia Question Category Roulette and how it works

Review the stored inventory and decide whether repeated entries are acceptable for the activity.
Enter a nonblank seed, count and withoutReplacement; for distinct draws, keep count within the inventory size.
Run the tool and read result.selectedTexts in draw order and result.samplingConvention.
Reuse the seed and settings to reproduce a draw, or change the seed for another sample; adapt selected text to the activity.

Input field	Meaning	Value type	Requirement
seed	Nonblank reproducibility string, at most 256 characters; required even with a supplied random source.	string	required; further conditions in the algorithm
count	Integer number of text draws, 1–64.	number	required; finite; further conditions in the algorithm
withoutReplacement	True samples distinct inventory positions; false allows repeats.	boolean	required; further conditions in the algorithm

Use one advancing random source for the request. Require integer count 1–64 and an explicit withoutReplacement boolean. Sample uniformly from 6 stored text positions. With replacement, each draw uses the full inventory; without replacement, remove each sampled position and reject counts exceeding 6. Return the selected texts in draw order and the sampling-convention label.

The default source hashes the seed’s UTF-16 units into an integer state and advances a deterministic arithmetic generator for each sample. A supplied execution-context random source takes precedence; it must return finite values in [0,1). The required seed still must be nonblank and at most 256 characters. These draws are reproducible entertainment or sampling, without cryptographic unpredictability.^[2]

P(position per draw) = 1/6 with replacement; without replacement, 1/(remaining positions)

Apply the declared units, ordering and branch conditions.

Zero-based position	Stored entry
0	Science
1	History
2	Geography
3	Music
4	Literature
5	Nature

Output field	Meaning	Value type
result	Object containing the declared output fields.	object
result.selectedTexts	Sampled stored text entries in draw order.	array
result.samplingConvention	Exact uniform-with-replacement or uniform-position-without-replacement label.	string

json

{
  "input": {
    "seed": "batch51-example",
    "count": 2,
    "withoutReplacement": false
  },
  "output": {
    "result": {
      "selectedTexts": [
        "Science",
        "Music"
      ],
      "samplingConvention": "uniform-with-replacement"
    }
  }
}

Limitations and assumptions

The inventory is fixed, bounded and shown below. The tool samples existing entries rather than generating new text, personalizing from identity data or establishing a prediction. The same seed reproduces the same request under the cited implementation; a supplied random source overrides the seeded sequence.

Supply explicit required fields with the documented types and dense aligned arrays. Unknown fields, wrong types and nonfinite numbers are rejected. Branch-specific constraints are explained above. A successful false boolean, negative signed difference, empty slice or unresolved tie is distinct from an input error. Very large inputs or outputs may be rejected by shared resource limits.

Alternative or Complementary methods

For a related operation, use Scattergories Letter Picker. A Scattergories-style round can start from a sampled letter.

For a related operation, use Pictionary Word Generator. A drawing-game word card gives a player a subject to illustrate.

References

Trivia Question Category Roulette — tool.io
Existing seeded random generator — tool.io

Similar or alternative tools

Scattergories Letter Picker
A Scattergories-style round can start from a sampled letter.
Pictionary Word Generator
A drawing-game word card gives a player a subject to illustrate.