A379853 Decimal expansion of the fraction of a population falling beyond +- 1 standard deviation of the mean, assuming a normal distribution.

3, 1, 7, 3, 1, 0, 5, 0, 7, 8, 6, 2, 9, 1, 4, 1, 0, 2, 8, 2, 9, 5, 3, 4, 9, 0, 8, 7, 3, 5, 9, 2, 4, 1, 5, 5, 0, 4, 4, 1, 7, 4, 0, 6, 6, 5, 4, 6, 7, 9, 1, 2, 1, 8, 0, 2, 5, 2, 1, 1, 0, 9, 9, 5, 1, 4, 0, 1, 7, 1, 1, 6, 0, 2, 5, 5, 9, 0, 3, 4, 0, 9, 9, 8, 2, 3, 0, 1, 6, 3, 1, 8, 8, 7, 2, 1, 3, 4, 4, 9

Offset

0,1

References

Jerome Spanier and Keith B. Oldham, "Atlas of Functions", Hemisphere Publishing Corp., 1987, chapter 40, table 40:7:1 at page 387.

Links

Table of n, a(n) for n=0..99.

Eric Weisstein's World of Mathematics, Erfc.

Formula

Equals 1 - A178647 = 2*A239382. - Hugo Pfoertner, Jan 04 2025

Example

0.3173105078629141028295349087359241550441740665...

Mathematica

RealDigits[Erfc[1/Sqrt[2]], 10, 100][[1]]

Crossrefs

Cf. A178647, A239382.

Sequence in context: A297156 A132885 A386717 * A187818 A365454 A059090

Adjacent sequences: A379850 A379851 A379852 * A379854 A379855 A379856

Keyword

nonn,cons

Author

Stefano Spezia, Jan 04 2025

Status

approved