
chap5 sec3
... The areas closest to 0.05 in the table are 0.0495 (z = –1.65) and 0.0505 (z = –1.64). Because 0.05 is halfway between the two areas in the table, use the z-score that is halfway between –1.64 and –1.65. The z-score is –1.645. ...
... The areas closest to 0.05 in the table are 0.0495 (z = –1.65) and 0.0505 (z = –1.64). Because 0.05 is halfway between the two areas in the table, use the z-score that is halfway between –1.64 and –1.65. The z-score is –1.645. ...
COUNTING MORSE CURVES AND LINKS 1. Morse curves Let M be
... such that the composition h ◦ f is a Morse function on S 1 , i.e., h ◦ f has a finite number of isolated nondegenerate critical points with all distinct critical values. A Morse k-link is a link of k Morse curves such that all critical values of all curves are distinct. The combinatorial type of a M ...
... such that the composition h ◦ f is a Morse function on S 1 , i.e., h ◦ f has a finite number of isolated nondegenerate critical points with all distinct critical values. A Morse k-link is a link of k Morse curves such that all critical values of all curves are distinct. The combinatorial type of a M ...
The local-global principle
... Hensel created p-adic numbers near the start of the 20th century and they had some early positive influences: Hensel used them to solve a conjecture of Dedekind about discriminants in algebraic number theory and they directly inspired Steinitz [10] to develop a general theory of fields in order to a ...
... Hensel created p-adic numbers near the start of the 20th century and they had some early positive influences: Hensel used them to solve a conjecture of Dedekind about discriminants in algebraic number theory and they directly inspired Steinitz [10] to develop a general theory of fields in order to a ...
Central limit theorem

In probability theory, the central limit theorem (CLT) states that, given certain conditions, the arithmetic mean of a sufficiently large number of iterates of independent random variables, each with a well-defined expected value and well-defined variance, will be approximately normally distributed, regardless of the underlying distribution. That is, suppose that a sample is obtained containing a large number of observations, each observation being randomly generated in a way that does not depend on the values of the other observations, and that the arithmetic average of the observed values is computed. If this procedure is performed many times, the central limit theorem says that the computed values of the average will be distributed according to the normal distribution (commonly known as a ""bell curve"").The central limit theorem has a number of variants. In its common form, the random variables must be identically distributed. In variants, convergence of the mean to the normal distribution also occurs for non-identical distributions or for non-independent observations, given that they comply with certain conditions.In more general probability theory, a central limit theorem is any of a set of weak-convergence theorems. They all express the fact that a sum of many independent and identically distributed (i.i.d.) random variables, or alternatively, random variables with specific types of dependence, will tend to be distributed according to one of a small set of attractor distributions. When the variance of the i.i.d. variables is finite, the attractor distribution is the normal distribution. In contrast, the sum of a number of i.i.d. random variables with power law tail distributions decreasing as |x|−α−1 where 0 < α < 2 (and therefore having infinite variance) will tend to an alpha-stable distribution with stability parameter (or index of stability) of α as the number of variables grows.