Re: YA Airline Memobitch...



Carl Banks <pavlovevidence@xxxxxxxxx> wrote in
news:42d4670a-f59b-41c8-b051-db8c57e7b0e2@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:

On Jun 18, 12:18 pm, The BorgMan <m...@xxxxxx> wrote:
Carl Banks <pavlovevide...@xxxxxxxxx> wrote in
news:d8822138-8b39-45cf-
bf51-422231604...@xxxxxxxxxxxxxxxxxxxxxxxxxxx:



Since the 1970s (at least), airplanes have a better track record of
safety than trains. Realize that, whatever objection you have, the
statisticians have already taken it into account when determining
this.

Define "safety"

Since 1970 <300 people have died due to train accidents in the United
States.

1996-2005 deaths per 100 million passenger miles:

Passenger autos - .81
Buses - .04
Airlines - .05
Rail - .02

Oops... you're about twice as likely to die in an airplane as on a
train.

You pulled those statistics out of your ass. How pathetic of you.

No, I pulled those statistics from the FRA and the NTSB. I did screw up
copying them though -

Rail - .05
Air - .02

So a train is about twice as likely to kill you as an airline, but then
the airline numbers do ignore cargo planes.

They are either dead wrong, or, I suspect (if you did get them from a
shady web site) misleading in a significant aspect.

Try this one (and I can produce lots more, if you want):

http://tinyurl.com/4fgeed


1986-1995 vs. 1996-2005

....and those numbers are per billion passenger miles.

There numbers vs. mine:

Air Them - .21/billion passenger miles = .021/100 million passenger miles

Air me - .02/100 million passenger miles

Number seems pretty accurate to me.


Rail them - .81/billion passenger mile = .081/100 million passenger miles

Rail me - .05./100 million passenger miles

Apparently trains were a bit safer 1996-2005 than they were 1986-1995.




I will say, in fairness, that 9/11 skewed the statistics quite a bit
and today these stats would be a lot closer. The fact that a small
number of incidents can skew results so much should tell you how
useless these statistics are--this is why I said, quite deliberately,
that airplanes have a better track record, not that airplanes are
safer.

Yet the airplane statistics show basically no change at all 1996-2005 vs.
1986-1995, and the former contains 9/11.

You claimed airplanes have had a better track record since 1970. I'd say
it's reasonably close either way.

By the way, what field related to transportation do you have a
master's degree in again? What transportation-related job do you have
again? Oh yeah.

Your degree doesn't seem to be generating any brilliant analyses.



I think you might be the one with the statistics problem.

I think your problem is an over-inflated sense of your own expertise.

I'm not the one saying the Federal Railroad administration and the NTSB
are wrong.

--
Aaron
.



Relevant Pages

  • Re: Statistics in Psychology?
    ... While there are limits--there's little one can do in a single semester to turn someone into a serious analyst--I think there are things that could be done to train a statistical NP with perhaps four semester courses of hard work spread out over two years. ... To use statistics properly, ... the probability model. ...
    (sci.stat.edu)
  • Re: Statistics in Psychology?
    ... train a statistical NP with perhaps four semester courses of hard work ... To use statistics properly, ... Thou shalt know that thou must make assumptions. ... Thou shalt not make thy client's assumptions for him. ...
    (sci.stat.edu)
  • Shuttle Safe as an Automobile?
    ... We've all seen the statistics that say flying in airliners is 10x or 100x ... several million safe passenger miles; to do that many passenger miles in a ... car would require lifetimes and countless trips. ... for millions of safe passenger miles, at least as good as what you can ...
    (sci.space.shuttle)
  • Re: 1816 London Victoria to Eastbourne forgot to stop at Three Bridges
    ... If a train doesn't stop at all the stops it is supposed to stop at it ... before it contributes towards the cancellation statistics? ... be a particular train that always runs late and always inconveniences ...
    (uk.railway)
  • Re: Statistics in Psychology?
    ... train a statistical NP with perhaps four semester courses of hard work ... Herman and I agree on our "miseducational system", ... mathematical statistics oriented) to be a MISEDUCATIONAL ... SYSTEM for an applied statistician. ...
    (sci.stat.edu)