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st: Drawing a sample that maintains means
I want to plot weight by age for two groups on the same graph. One of the
groups has about 18,000 observations, which really crowds the graph. The
other has about 700 observations. So I would like to draw a sample that
will plot well, but maintain the mean weight (to one decimal place) at each
of six exams for each of the two groups. Is there a good way to draw a
sample this specific?
Statistician, SSS Inc.
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