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  2. p-value - Wikipedia

    en.wikipedia.org/wiki/P-value

    However, suppose we have planned to simply flip the coin 6 times no matter what happens, then the second definition of p-value would mean that the p-value of "3 heads 3 tails" is exactly 1. Thus, the "at least as extreme" definition of p -value is deeply contextual and depends on what the experimenter planned to do even in situations that did ...

  3. Senary - Wikipedia

    en.wikipedia.org/wiki/Senary

    Additionally, since the smallest four primes (2, 3, 5, 7) are either divisors or neighbors of 6, senary has simple divisibility tests for many numbers. Furthermore, all even perfect numbers besides 6 have 44 as the final two digits when expressed in senary, which is proven by the fact that every even perfect number is of the form 2 p – 1 (2 p ...

  4. Metric prefix - Wikipedia

    en.wikipedia.org/wiki/Metric_prefix

    2 Mm 3 means two cubic megametres, or the volume of two cubes of 1 000 000 m by 1 000 000 m by 1 000 000 m, i.e. 2 × 10 18 m 3, and not 2 000 000 cubic metres (2 × 10 6 m 3). Examples with prefixes and powers

  5. Chi-squared distribution - Wikipedia

    en.wikipedia.org/wiki/Chi-squared_distribution

    These values can be calculated evaluating the quantile function (also known as "inverse CDF" or "ICDF") of the chi-squared distribution; [23] e. g., the χ 2 ICDF for p = 0.05 and df = 7 yields 2.1673 ≈ 2.17 as in the table above, noticing that 1 – p is the p-value from the table.

  6. Standard normal table - Wikipedia

    en.wikipedia.org/wiki/Standard_normal_table

    The label for rows contains the integer part and the first ... the proportion that is greater than Z is found by ... 1.34990 E −3: 3.16712 E −5: 2.86652 E −7 ...

  7. Duodecimal - Wikipedia

    en.wikipedia.org/wiki/Duodecimal

    The duodecimal system, also known as base twelve or dozenal, is a positional numeral system using twelve as its base.In duodecimal, the number twelve is denoted "10", meaning 1 twelve and 0 units; in the decimal system, this number is instead written as "12" meaning 1 ten and 2 units, and the string "10" means ten.

  8. Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Plus–minus_sign

    For example, 5.7 ± 0.2 may be anywhere in the range from 5.5 to 5.9 inclusive. In scientific usage, it sometimes refers to a probability of being within the stated interval, usually corresponding to either 1 or 2 standard deviations (a probability of 68.3% or 95.4% in a normal distribution ).

  9. Bessel function - Wikipedia

    en.wikipedia.org/wiki/Bessel_function

    n (x) with n = −0.5 in the complex plane from −2 − 2i to 2 + 2i Plot of the Hankel function of the second kind H (2) n ( x ) with n = −0.5 in the complex plane from −22 i to 2 + 2 i Another important formulation of the two linearly independent solutions to Bessel's equation are the Hankel functions of the first and second kind ...