{
  "dataset": "human-worked-calculation-examples",
  "version": "1.0.0",
  "checked_date": "2026-08-30",
  "metadata": {
    "scope": "Plain-English worked examples designed to sit beside formulas."
  },
  "rows": [
    {
      "topic": "roulette expected cost",
      "inputs": "$1,000 action; 2.7027% edge",
      "formula": "1000 × 0.027027",
      "result": "$27.03 expected cost",
      "plain_english": "This is a long-run average, not a prediction of a $1,000 session."
    },
    {
      "topic": "baccarat Banker expected cost",
      "inputs": "$2,000 action; 1.0579% edge",
      "formula": "2000 × 0.010579",
      "result": "$21.16 expected cost",
      "plain_english": "Actual session results can be much higher or lower."
    },
    {
      "topic": "sportsbook overround",
      "inputs": "1.91 / 1.91",
      "formula": "1/1.91 + 1/1.91 - 1",
      "result": "4.712% overround",
      "plain_english": "This describes the displayed market price, not guaranteed operator profit."
    },
    {
      "topic": "bonus contribution",
      "inputs": "$2,000 credited wagering; 25% contribution",
      "formula": "2000 / 0.25",
      "result": "$8,000 actual action",
      "plain_english": "A low contribution rate can multiply the real wagering volume."
    },
    {
      "topic": "push settlement",
      "inputs": "$100 stake; push",
      "formula": "stake returned",
      "result": "$100 gross return; $0 profit",
      "plain_english": "Common treatment shown; always check the market rules."
    }
  ]
}