Re: stat problem
- From: David Winsemius <doe_snot@xxxxxxxxxxx>
- Date: Sun, 29 Apr 2007 23:06:19 -0500
jllyjoshi@xxxxxxxxxxxx wrote in news:1177900934.379466.267280
@o5g2000hsb.googlegroups.com:
I was just wondering if there was any method that I could use to find"anewbie" posed a very similar problem although he said the median (Q2) was
the minimum standard deviation of a group of 21 numbers. Given that
min=10
max=90
Q1 = 30
Q2 = 40
Q3 = 60
mode =35
mean = 45
How do you find this??Could you tell me the method to find it ??I
tried but i couldn't find any ideas??
45. Since he gave an trial answer with a median of 40, and he was a bit
loose in the problem statement at first, this may be a situation where two
people from the same class posted to s.s.m. Assuming your "numbers" need to
be integers, as his did, then it's not a statistics problem at all. but
rather an integer programming problem.
<http://mat.gsia.cmu.edu/orclass/integer/integer.html>
See the earlier thread (incorrectly) entitled "Stat problem". The standard
deviation is a minimization criterion, and the statements about the mean
and mode create constraints, but there is no random sampling or sources of
variation that would make it a statistics problem
--
David Winsemius
.
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