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Transcript
```Concept/Topic
Summary for September
GPS/CCSS
13, 2011
Variability “from the
MM1D4
mean”
Deviation. It is the sum of
absolute values of the
MM1D4
differences of observations
from mean; Level B concept,
Early Level C
Deviation. It is the average of
the distances of the
MM1D4
observations from the mean –
a Level B concept, early
Level C
Level A – fair share
interpretation of the mean;
variability from the fair
share is measured by
N/A
"number of steps" to the
fair share or to “level off” the
stack of cubes
Relationship between # of
steps to level off and the
N/A
number of steps (from level
A)
Level B – interpretation of
N/A
mean = balance point
Level C – How do we take a
sample mean and make an
population mean? “How
N/A
close can we expect our
sample mean to be to the
population mean?”
Level C – measure
variability by Standard
Deviation (differs from