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WGU C207 Data Driven Decision Making Questions and Answers Latest (2023 / 2024) (Verified Answers)
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WGU C207 Data Driven Decision Making Questions and Answers Latest (2023 / 2024) (Verified Answers)
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WGUC207
Data
Driven
Decision
Making
Z-Score
-
answerData
points
only.
Measurement
of
a
scores
relationship
to
the
mean.
A
statistical
measure
that
indicates
the
number
of
standard
deviations
a
data
point
is
from
its
mean.
Variance
-
answerHow
far
a
set
of
numbers
are
spread.
Used
for
Data
set.
Hint
Words
=
Risk,
spread.
Multiplication
Rule
-
answerA
method
for
finding
the
probability
that
both
of
two
events
occur.
When
the
probabilities
of
multiple
events
are
multiplied
together
to
determine
the
likelihood
of
all
of
the
events
happening.
Word
Hint:
And
Addition
Rule
-
answerA
method
for
finding
the
probability
that
either
or
both
of
two
events
occur.
When
two
events,
A
and
B,
are
mutually
exclusive,
the
probability
that
A
or
B
will
occur
is
the
sum
of
the
probability
of
each
event.
Word
Hint:
Either/or.
Combination
Rule
-
answerHow
many
combinations
can
be
made.
Bayes
Theorem
-
answerProbability
of
an
event
,
based
on
conditions
that
might
be
related
to
the
event.
Conditional
probability .
A
formula
that
calculates
conditional
probabilities.
Important
for
understanding
how
new
information
affects
the
probabilities
of
outcomes.
Word
Hint:
Given
that.
Median
-
answerNumber
halfway
into
the
data
set.
Hint
Word:
Typical
Mode
-
answerNumber
that
occurs
most
often
in
a
data
set.
Mean
-
answerAverage.
Add
all
numbers
and
divide.
Standard
Deviation
-
answerHow
spread
out
the
numbers
are.
Square
root
of
the
variance.
Pareto
Chart
-
answerContains
both
line
and
bar
graphs.
Ordered
by
frequency
of
occurrence
that
shows
how
many
results
were
generated
by
each
identified
cause.
Cause
and
Effect
Diagram
-
answerShows
the
causes
of
a
specific
event. Check
Sheet
-
answerCollect
data
in
real
time.
Control
Chart
-
answerDetermines
whether
a
process
should
undergo
a
formal
exam
for
quality.
Histogram
-
answerGraph
representing
the
distribution
of
numeric
data.
Measures
how
continuous
data
is
distributed
over
various
ranges.
Example:
Displays
how
many
people
fall
in
various
ranges
of
height.
Scatter
Diagram
-
answerA
graphic
that
uses
dots
to
show
relationships
or
correlations
between
variables
Flow/Run
Chart
-
answerShows
the
workflow
process
Bar
Chart
-
answerGraph
of
schedule-related
info.
Example:
Measures
how
many
people
are
from
each
state.
Box
-
Plot
-
answerUsed
while
studying
the
composition
of
a
data
set
to
examine
the
distribution
(non
-
parametric
data)
uses
median
and
percentiles
rather
than
averages.
(Look
for
Spread
and
Median.)
Dependent
Variable
-
answerDependent
upon
the
Independent
variable
Independent
Variable
-
answerVariable
the
drives
the
dependent
variable
Range
-
answerDif ference
between
the
lowest
and
highest
number
in
a
data
set.
Example:
4,6,9,3,7
Range
=
9-3
=6
T-Statistic
-
answerStatistic
(derived
from
a
sample)
used
in
hypothesis
testing.
Determines
if
2
sample
means
are
significantly
different
from
each
other.
Central
Limit
Theorem
-
answerDistribution
of
average
of
a
large
number
of
independent,
identical,
variables
will
be
approximately
normal.
OR
the
idea
that
if
a
large
enough
number
of
samples
is
taken,
the
means
of
those
samples
will
be
normally
distributed
around
the
population
mean.
F-Statistic
-
answerValue
you
get
when
you
run
an
ANOVA
test
or
a
regression
analysis
to
find
out
if
the
means
between
two
populations
are
significantly
different.
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