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psychology
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measures of central tendencys
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Created by
kathryn gilpin
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Cards (17)
The measure of central tendency's are
descriptive
statistics.
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The
mean
is calculated by
adding
all the
numbers
and
dividing
by the number of
numbers.
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The
median
is the
middle
value.
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The
mode
is the most
frequent
number.
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The
range
is the
difference
between the
highest
and
lowest
numbers.
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The
mean
,
median
, and
mode
are measures of
central tendency.
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Standard deviation
is a measure of how
consistent
and
far
each data point
deviates
from the
mean.
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A
larger
standard deviation indicates
greater
dispersion.
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A
smaller standard deviation
indicates
smaller dispersion.
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Measure of central tendency evaluations include the
mean
,
medium
, and
mode.
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The
mean
can be used with
all types
of
data
but is not very
representative
as it doesn't take in
extreme values.
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The median is less affected by
extreme
values and is not truly
representative
as it doesn't take in
extreme
values.
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The
mode
can be used with
all types
of
data
and
measures nominal
and
categorical data
, but is not very
representative
as it doesn't take in
extreme values.
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Measures of dispersion include the
range
and
standard deviation.
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The range is
simple
to calculate and provides very
limited
information.
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Standard deviation
is a
precise
measurement of
overall dispersion
than
range
as all values are used.
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Standard deviation
may be
misleading
as
extreme
values are still used.
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