Download Introduction to Chance Models (Section 1.1) Introduction A key step

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Notice that each simple random sample gave us different values for the statistics. That is, there
is variability from sample to sample (sampling variability). This makes sense because the
samples are chosen randomly and consist of different words each time, so we expect some
differences from sample to sample.
Gettysburg Address Sampling Frame
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Four
score
and
seven
years
ago
Our
fathers
brought
forth
upon
this
continent
A
new
nation
conceived
In
liberty
and
dedicated
To
The
proposition
that
All
men
Are
created
June 27, 2014
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are
met
on
a
great
battlefield
of
that
war
We
have
come
To
dedicate
A
portion
Of
that
field
as
a
final
resting
place
For
those
Who
here
gave
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we
cannot
consecrate
we
cannot
hallow
this
ground
The
brave
men
living
and
dead
who
struggled
here
have
consecrated
It
far
above
our
poor
power
to
add
or
detract
MAA PREP workshop
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living
rather
to
be
dedicated
here
to
the
unfinished
work
which
they
who
fought
here
have
thus
far
so
nobly
advanced
It
is
rather
for
us
to
be
here
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full
measure
of
devotion
that
we
here
highly
resolve
that
these
dead
shall
not
have
died
in
vain
that
this
nation
under
God
shall
have
a
new
birth
of
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