JSTOR Daily

Shorter Confidence Intervals for the Mean of a Normal Distribution with Known Variance

This is a preview. Log in through your library . Abstract This paper obtains and explores a family of confidence procedures for the mean of a normal distribution which are, in a certain sense, more ...
Nature

Directly measuring mean and variance of infinite-spectrum observables such as the photon orbital angular momentum

The standard method for experimentally determining the probability distribution of an observable in quantum mechanics is the measurement of the observable spectrum. However, for infinite-dimensional ...
JSTOR Daily

The Approximate Distributions of the Mean and Variance of a Sample of Independent Variables

This is a preview. Log in through your library . Publisher Information The purpose of the Institute of Mathematical Statistics (IMS) is to foster the development and dissemination of the theory and ...
Investopedia

What Is Variance in Statistics? Definition, Formula, and Example

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...