[PLUG] Free time wasted costs what?

[Karl M. Hegbloom]

On Fri, 2002-12-06 at 22:11, Jeme A Brelin wrote:
> This isn't difficult arithmetic, Russ.
> 
> On Fri, 6 Dec 2002, Russ Johnson wrote:
> > However, that doesn't change the fact that my travel time is WAY up
> > when compared to driving. Nearly double. Jeme says 23 minutes (or
> > something like that).
> 
> I wrote 21 minutes because you wrote that the public transit commute was
> 53 minutes and the private vehicle commute was 32 minutes.  I just
> subtracted.
> 
> And to say that it's "nearly double" is to give a margin of error greater
> than 50%.  In order to be double, the difference would be 32 minutes.  
> The actual difference is 21 minutes.  You're 11 minutes shy of doubling.  
> And 11 is more than 50% of 21.
> 
> > Well, that's nearly 50% of 53 minutes.
> 
> Actually, 21 minutes is less than 40% of 53 minutes.
> 
> > When we're talking an hour, 23 minutes is close enough to 50%.
> 
> 21 minutes (and even 23!) is much closer to a third of an hour than half.
> 
> But we're not even talking about an hour.  That would be to overestimate
> by greater than 10%.  And calling 21 minutes 50% of an hour is an error of
> more than 40%.
> 
> You don't build bridges, I hope.

But he would be great at counting spoons and one for you two for me
accounting!  Get a tie on him, quick!