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Re: Storage Cost Calculation

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On Sun, Sep 28, 2014 at 11:14 AM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> MRAB wrote:
>
>> In 1981 the BBC Micro was released. There were 2 versions, model A with
>> 16K and model B was 32K. The price difference was £100, so that's £100
>> for 16K of RAM.
>
> That doesn't follow. The model A might have been £1 (in which case you could
> get 16K for £1) or it might have been £10000. All your calculation shows is
> that model B was £100 more expensive.
>
> There are three more-or-less equally valid statistics you could have used to
> calculate the price of RAM: the average, minimum, or maximum. With only two
> data points, it doesn't matter whether you use the mean or median to
> calculate the average. Of the three, the minimum is probably the most
> useful.

The RAM was presumably the only difference between the two models, so
as long as Model A cost at least £100 (which seems likely; a bit of
quick Googling suggests that it may have been of the order of £400), a
£100 difference can plausibly be called the price of the RAM.

ChrisA

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Thread

Re: Storage Cost Calculation MRAB <python@mrabarnett.plus.com> - 2014-09-27 16:41 +0100
  Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 11:14 +1000
    Re: Storage Cost Calculation Chris Angelico <rosuav@gmail.com> - 2014-09-28 11:37 +1000
      Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 12:47 +1000
        Re: Storage Cost Calculation Chris Angelico <rosuav@gmail.com> - 2014-09-28 13:35 +1000
          Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 14:39 +1000
            Re: Storage Cost Calculation Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-09-28 11:32 -0400
        Re: Storage Cost Calculation Ian Kelly <ian.g.kelly@gmail.com> - 2014-09-27 23:04 -0600
        Re: Storage Cost Calculation Duncan Booth <duncan.booth@invalid.invalid> - 2014-09-28 20:07 +0000
          Re: Storage Cost Calculation Denis McMahon <denismfmcmahon@gmail.com> - 2014-09-29 14:44 +0000

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