RE: Public Opinion On Spending -- order of magnitude

2002-08-01 Thread Grey Thomas

Usually one order of magnitude more is about 10 times more.
So, increasing from a range around 8 to around 80 is an
increase in an order of magnitude.

It is more debatable, but not uncommon, for each digit to be
its own order of magnitude: 1-9 / 10-99 / 100-999.

Unfortunately, my whatis definition reference,
http://whatis.techtarget.com/definition/0,,sid9_gci527311,00.html

doesn't answer the implied range question either. 
[It does mention: multipliers from septillionths (10)^-24 
to septillions (10)^24, a span of 48 orders of magnitude.] 

I'd say 8 going to 110 is only a single order of magnitude increase;
my own rough range is based on 50% of the next higher, 
so I wouldn't call it a second order of magnitude 
until it was over 400, half of 800.

Now I am also interested in knowing what is 
the smallest number that is two orders of magnitude larger 
than the original 8 billion estimate ?

Tom Grey

 Relying on the adage---the only stupid question is the one 
 not asked---I ask
 for an explanation of an order of magnitude.  I had 
 understood it to mean
 an approximation of an amount associated with whatever 
 subject was under
 discussion.  However, in reading David Levenstam's comment 
 (see related
 excerpt below) it appears that an order of magnitude is 
 generally viewed
 as 10's, 100's, 1000's etc.  Responses welcome.
  
 All my books remain packed in boxes, so I can't look up the 
 figures, but I 
 seem to recall that the Congressional proponents of Medicare 
 projected an 
 ten-year federal outlay of some $8 billion, as opposed to the 
 annual outlay 
 of $110+ billion now.  I can't conceive of the vast majority 
 of Americans 
 supporting a program that would have cost two orders of 
 magnitude greater 
 than projected.
 




Re: Public Opinion On Spending -- order of magnitude

2002-08-01 Thread AdmrlLocke


In a message dated 8/1/02 2:50:47 PM, [EMAIL PROTECTED] writes:

 If you want a technical definition: if X is precisely N orders of 
magnitude 
greater than Y, then X = (10^N)Y.  Thus 110 million, being between 80 million 
and 800 million, is between one and two orders of magnitude greater than 8 
million.  A more exact figure, if we want to get logarithmical, is that 110 
million is 1.14 orders of magnitude greater than 8 million.
To say that 110 million is two orders of magnitude greater than 8 million is 
probably to play somewhat fast and loose with the definition of an order of 
magnitude; David was likely thinking in terms of how many more digits the 
one has than the other.  Myself, I'd tend to say that a number would have to 
be at least 253 million (it is 1.5 orders of magnitude greater than 8 
million, which rounds to two) before I'd call it two orders of magnitude 
greater than 8 million.
Perhaps there is an accepted definition of order of magnitude which is 
defined solely by how many digits are in a number; if so, then this sense is 
far less precise, defining 1000 to be an order of magnitude greater than 999 
(for example).  If such a definition exists, it would fit with David's 
statement.

--Brian 

The $8 billion figure refers to a 10-year estimate of the original cost, 
whereas the $110 figure refers to the current annual cost (or the annual cost 
during the vicious debates over reigning-in entitlement costs which took 
place during the Clinton administration when concern over the deficit brought 
uncontrolled entitlement spending to the center of public policy debate when 
the news media treated us to daily harangues against cold-hearted Republicans 
who wanted to force poor elderly people to die from horrible untreated 
illnesses because some Republicans wanted to reduce the annual growth rate of 
Medicare from 11% to 8%).  Thus the $8 billion figure comes to $0.8 billion 
annually, more than two orders of magnitude smaller than the $110 annual 
figure from the 1990s.  Since I'm relying on old memory for the figures 
anyway I thought I'd be generous and round down to two orders of magnitude.

Sincerely,

David Levenstam