The coefficient of variation In some cases, it may be most relevant to describe the relative variation within a sample or population. Put another way, knowing the sample SD is really not very informative unless we also know the sample mean.
If you are an ultra-rich oil baron for whom petroleum is the basis of all your wealth and poweryou are going to fight the solar power industry like you were a cornered wolverine.
Just try to find a CEOs of telephone-directories, newspaper, encyclopedia, and magazine publishers who has anything nice to say about the advent of the internet.
All of those publishers are rapidly going bankrupt. Such powerful people want the status quo antethank you very much. Not for deep-seated psychological reasons, it is just about the money. They will use every tool at their disposal. Everything from buying all the rights to the tech and supressing it, to forcing their bribed politicians to pass laws outlawing the disruptive technology.
Remember all those urban legends about the guy who invented an automobile that would run on water, and how they mysteriously vanished never to be seen again? They are more or less at war with the status quo group. Let alone any corporation who have made their profits skyrocket by utilizing this new thing called "the internet.
On a cynical note, Heinlein made a time-line to place all his stories and characters on. In the story the two protagonists Douglas and Martin prevail over the Power Syndicate. On the time-line I noticed that Douglas and Martin died on the same day.
I suspect that they were assasinated in revenge by the Power Syndicate. He mounts it on a submarine and has instant starship. Then he and the submarine depart for parts unknown. This makes the totalitarian government very unhappy. They want to use this technology, they do not want citizens getting their hands on it.
Makes it far to easy to escape the totalitarian state. Then they find out that Gilpin has mailed blueprints of the gadget to quite a few people. A scifi Maguffin that destroys a corrupt government and frees the oppressed people is a very libertarian idea.
Just keep in mind the drawbacks of libertarianism. Ignorance, disease, poverty and fear had virtually ceased to exist. The memory of war was fading into the past as a nightmare vanishes with the dawn; soon it would lie outside the experience of all living men.
With the energies of mankind directed into constructive channels, the face of the world had been remade. It was, almost literally, a new world.
The cities that had been good enough for earlier generations had been rebuilt-or deserted and left as museum specimens when they had ceased to serve any useful purpose.
Many cities had already been abandoned in this manner, for the whole pattern of industry and commerce had changed completely.
Production had become largely automatic; the robot factories poured forth consumer goods in such unending streams that all the ordinary necessities of life were virtually free. Men worked for the sake of the luxuries they desired; or they did not work at all.
It was One World. The old names of the old countries were still used, but they were no more than convenient postal divisions. There was no one on earth who could not speak English, who could not read, who was not within range of a television set, who could not visit the other side of the planet within twenty-four hours.
Crime had practically vanished. It had become both unnecessary and impossible. When no one lacks anything, there is no point in stealing. Moreover, all potential criminals knew that there could be no escape from the surveillance of the Overlords.
In the early days of their rule, they had intervened so effectively on behalf of law and order that the lesson had never been forgotten.Back to Items of Interest Sub-Table of Contents.
Laser Power What Makes a Laser Power Meter So Expensive? Commercial laser power meters cost $ and up - $1, is a more typical price for something that works over a wide range of power levels and wavelengths.
Thinkwell Trigonometry online math course includes videos, automatically graded math problems, exercises, and worksheets by Edward Burger, great for homeschool or self study.
Case and Another v Minister of Safety and Security and Others, Curtis v Minister of Safety and Security and Others (CCT20/95, CCT21/95)  ZACC 7; . Back to Items of Interest Sub-Table of Contents.
Laser Power, Photons, How Much Light?, Beam Profile About HeNe Laser Power Ratings Any given laser - be it a HeNe, argon ion, CO2, or other CW laser; or a pulsed laser like an Nd:YAG, Ti:Sapphire, or excimer, will have two, maybe three, power or . Box and Cox () developed the transformation. Estimation of any Box-Cox parameters is by maximum likelihood.
Box and Cox () offered an example in which the data had the form of survival times but the underlying biological structure was of hazard rates, and the transformation identified this. Marlye asked students in her school whether they prefer scary movies or comedies.
She found that 35 students p Get the answers you need, now!