Examlex
When we carry out a chi-square test of independence,the chi-square statistic is based on (r × c)− 1 degrees of freedom,where r and c denote,respectively,the number of rows and columns in the contingency table.
PETN
Pentaerythritol tetranitrate, a high explosive compound used in a variety of military, industrial, and mining applications.
Pentaerythritol Tetranitrate
An explosive compound better known as PETN, used both in military and industrial applications, with a formula of C5H8N4O12.
Acronym
A word formed from the initial letters of a phrase, making it easier to remember or say.
Shockwave
A sharp change in pressure, temperature, and density moving through a medium, typically caused by an object moving faster than the speed of sound in that medium.
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