[plt-scheme] science fair help

Duh! That helps more than it should have... :-/

On Sun, Dec 13, 2009 at 8:24 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> Could his function take a list of lists?
>
> Robby
>
> On Sun, Dec 13, 2009 at 7:02 PM, Todd O'Bryan <toddobryan at gmail.com> wrote:
>> I have a student who's doing a science fair project and needs to find
>> the average for each location in a bunch (number unspecified) of
>> lists.
>>
>> For example, given
>>
>> (list 1 3 5 7) (list 2 1 3 3) (list 3 8 1 5)
>>
>> he'd like
>>
>> (list 2 4 3 5)
>>
>> I can write the function pretty easily in Module by writing an average
>> function that takes a variable number of arguments, but my attempts to
>> do it in Intermediate or Advanced are pretty complicated. Is there a
>> fairly easy way to do it in the teaching languages that I'm missing?
>> If not, I can just put together a teachpack for him that provides that
>> function so he can use it.
>>
>> Todd
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>