Thursday 24 May 2012

Reliability Concepts and Reliability Data

Reliability Concepts and Reliability Data

Reliability Concepts and Reliability Data Objectives • Explain basic concerns relating to product reliability. • List some reasons for coll...

Wednesday 23 May 2012

Applications  of Auto correlations

Applications of Auto correlations

One application of autocorrelation is the measurement of optical spectra and the measurement of very-short-duration light pulses produced by...
What is Statistic?

What is Statistic?

A  statistic  (singular) is a single measure of some attribute of a sample (e.g. its arithmetic mean value). It is calculated by applying a ...

Monday 21 May 2012

Quantities derived from the survival distribution

Quantities derived from the survival distribution

Future lifetime  at a given time   is the time remaining until death, given survival to age  . Thus, it is   in the present notation. The  e...
Hazard function and cumulative hazard function

Hazard function and cumulative hazard function

The  hazard function , conventionally denoted  , is defined as the event rate at time  t  conditional on survival until time  t  or later (t...
Survival analysis

Survival analysis

Survival analysis  is a branch of statistics which deals with death in biological organisms and failure in mechanical systems. This topic is...
Moment-generating function

Moment-generating function

In probability theory and statistics, the  moment-generating function  of a random variable is an alternative specification of its probabili...