The reason is simple and comprehensive
Assume a population with ANY distribution of
elements. Then randomly select
a number of sample elements from the population to
characterize the
underlying population. That distribution of sample
elements ALWAYS tends
toward a normal [Gaussian]
Apologise,
The original email,
The reason is simple and comprehensive
Assume a population with ANY distribution of
elements. Then randomly select
a number of sample elements from the population to
characterize the
underlying population. That distribution of sample
elements
Isobel did not write the careless paragraph about the central limit theorem
(CLT) Don replied to, as pointed out by Digby. I wish to add something to
what Don said about the conditions under which the CLT applies, and that
people usually miss in considering the universality of the CLT. See below.