38 Degrees 38 Degrees 38 Degrees is a British not-for-profit political-activism organisation. It describes itself as "progressive" and claims to "campaign for fairness, defend rights, promote peace, preserve the planet and deepen democracy in the UK". In October 2013, it was reported to claim 1.9 million UK members. 38 Degrees takes its name from "the angle at which snowflakes come together to form an avalanche". The organisation launched on 26 May 2009. The 38 Degrees website states: "38 Degrees was founded by a group of activists and funders concerned about the state of our democracy and determined to try something different. Founders
Degrees of freedom (statistics) the vectors of residuals are constrained to lie in a space of smaller dimension than the number of components in the vector. That smaller dimension is the number of degrees of freedom for error, also called residual degrees of freedom. Perhaps the simplest example is this. Suppose are random variables each with expected value μ, and let be the "sample mean." Then the quantities are residuals that may be considered estimates of the errors "X" − μ. The sum of the residuals (unlike the sum of the errors) is necessarily 0. If one knows the values of any "n" −