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  2. Guess 2/3 of the average - Wikipedia

    en.wikipedia.org/wiki/Guess_2/3_of_the_average

    Grosskopf and Nagel's investigation also revealed that most players do not choose 0 the first time they play this game. Instead, they realise that 0 is the Nash Equilibrium after some repetitions. [14] A study by Nagel reported an average initial choice of around 36. This corresponds to approximately two levels of k-level reasoning. [15]

  3. Rounding - Wikipedia

    en.wikipedia.org/wiki/Rounding

    With decimal arithmetic, final digits of 0 and 5 are avoided; if there is a choice between numbers with the least significant digit 0 or 1, 4 or 5, 5 or 6, 9 or 0, then the digit different from 0 or 5 shall be selected; otherwise, the choice is arbitrary. IBM defines that, in the latter case, a digit with the smaller magnitude shall be selected ...

  4. Floating-point arithmetic - Wikipedia

    en.wikipedia.org/wiki/Floating-point_arithmetic

    A signed (meaning positive or negative) digit string of a given length in a given base (or radix). This digit string is referred to as the significand, mantissa, or coefficient. [nb 1] The length of the significand determines the precision to which numbers can be represented. The radix point position is assumed always to be somewhere within the ...

  5. List of The Price Is Right pricing games - Wikipedia

    en.wikipedia.org/wiki/List_of_The_Price_Is_Right...

    The contestant is shown an incorrect price for a car. Each digit displayed is either one higher or one lower than the correct digit in the price (e.g., an initial 7 is either a 6 or an 8). The contestant adjusts each digit and wins the car if they choose all five digits correctly. If all five digits are wrong, the contestant automatically loses.

  6. Triangular number - Wikipedia

    en.wikipedia.org/wiki/Triangular_number

    The final digit of a triangular number is 0, 1, 3, 5, 6, or 8, and thus such numbers never end in 2, 4, 7, or 9. A final 3 must be preceded by a 0 or 5; a final 8 must be preceded by a 2 or 7. In base 10, the digital root of a nonzero triangular number is always 1, 3, 6, or 9. Hence, every triangular number is either divisible by three or has a ...

  7. Round number - Wikipedia

    en.wikipedia.org/wiki/Round_number

    A round number is an integer that ends with one or more "0"s (zero-digit) in a given base. [1] So, 590 is rounder than 592, but 590 is less round than 600. In both technical and informal language, a round number is often interpreted to stand for a value or values near to the nominal value expressed.

  8. Shut the box - Wikipedia

    en.wikipedia.org/wiki/Shut_the_box

    For example, if the total number of dots is 8, the player may choose any of the following sets of numbers (as long as all of the numbers in the set are available to be covered): 8; 7, 1; 6, 2; 5, 3; 5, 2, 1; 4, 3, 1; The player then rolls the dice again, aiming to shut more numbers.

  9. List of six-number lottery games - Wikipedia

    en.wikipedia.org/wiki/List_of_six-number_lottery...

    In a variant of the six-number game, such as Pennsylvania's Match 6, the player receives three sets of six numbers for each play; the sales terminal automatically generates two of these sets. A player wins either by matching enough numbers in any of the three sets against those drawn, or by matching enough numbers across all three sets.