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  2. Krugerrand - Wikipedia

    en.wikipedia.org/wiki/Krugerrand

    The legend is inscribed with "KRUGERRAND" and the gold weight. The Krugerrand ( / ˈkruːɡərænd /; [ 1] Afrikaans: [ˈkry.ərˌrant]) is a South African coin, first minted on 3 July 1967 to help market South African gold and produced by Rand Refinery and the South African Mint. [ 2][ 3] The name is a compound of Paul Kruger, the former ...

  3. Slang terms for money - Wikipedia

    en.wikipedia.org/wiki/Slang_terms_for_money

    Slang terms for money often derive from the appearance and features of banknotes or coins, their values, historical associations or the units of currency concerned. Within a language community, some of the slang terms vary in social, ethnic, economic, and geographic strata but others have become the dominant way of referring to the currency and are regarded as mainstream, acceptable language ...

  4. South African rand - Wikipedia

    en.wikipedia.org/wiki/South_African_rand

    The 1978 series began with denominations of 2, 5, 10, and 20 rand, with a 50 rand introduced in 1984. This series had only one language variant for each denomination of note. Afrikaans was the first language on the 2, 10, and 50 rand, while English was the first on the 5 and 20 rand. A coin replaced the 1 rand note.

  5. Missing dollar riddle - Wikipedia

    en.wikipedia.org/wiki/Missing_dollar_riddle

    The misdirection in this riddle is in the second half of the description, where unrelated amounts are added together and the person to whom the riddle is posed assumes those amounts should add up to 30, and is then surprised when they do not ⁠— ⁠there is, in fact, no reason why the (10 ⁠− ⁠1) ⁠× ⁠3 ⁠ + ⁠2 ⁠ = ⁠29 sum should add up to 30.

  6. Currency appreciation and depreciation - Wikipedia

    en.wikipedia.org/wiki/Currency_appreciation_and...

    Currency appreciation and depreciation. Currency depreciation is the loss of value of a country's currency with respect to one or more foreign reference currencies, typically in a floating exchange rate system in which no official currency value is maintained. Currency appreciation in the same context is an increase in the value of the currency.

  7. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The £ grapheme in a selection of fonts. The pound sign ( £) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England. The same symbol is used for other currencies called pound, such as ...

  8. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...

  9. Log-normal distribution - Wikipedia

    en.wikipedia.org/wiki/Log-normal_distribution

    A probability distribution is not uniquely determined by the moments E[X n] = e nμ + ⁠ 1 / 2 ⁠ n 2 σ 2 for n ≥ 1. That is, there exist other distributions with the same set of moments. [4] In fact, there is a whole family of distributions with the same moments as the log-normal distribution. [citation needed]