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BRM quiz 2 Questions & answers with Complete Solutions 100%correct
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BRMquiz
2
A
better
way
to
display
the
data
found
on
the
pie
chart
at
the
right
is
a)
A
line
chart
b)
A
bar
graph
c)
Add
more
categories
d)
Make
it
more
colorful
-
ANS-b)
a
bar
graph
A
density
curve
displays
the
distribution
of
a)
A
data
set
b)
The
mean
and
median
c)
What
the
population
shape
should
be
-
ANS-c)
What
the
population
shape
should
be
A
histogram
is
used
to
display
data
from
what
type
of
variable?
Categorical
Quantitative
-
ANS-quantitative
A
situation
one
would
choose
to
use
a
histogram
rather
than
a
stemplot
would
be
a)
For
a
very
small
data
set
b)
For
a
very
large
data
set
c)
For
a
skewed
data
set
d)
If
we
want
to
hide
certain
features
of
shape
of
the
distribution
-
ANS-b)
For
a
very
large
data
set
A
stemplot
is
a)
Similar
to
a
histogram
turned
on
its
side
b)
Similar
to
a
bar
graph
turned
on
its
side
c)
Used
for
a
skewed
data
set
d)
A
line
graph
turned
vertically
-
ANS-a)
Similar
to
a
histogram
turned
on
its
side
A
well-drawn
histogram
should
have
A)
bars
that
are
all
the
same
width.
B)
no
space
between
bars
(unless
a
class
has
no
observations).
C)
a
clearly
marked
vertical
scale.
D)
All
of
the
above
-
ANS-D)
all
of
the
above
A
woman
is
told
her
weight
has
a
standard
score
of
-2.
This
means
her
weight
is a)
2
pounds
below
average
b)
2
pounds
above
average
C)
2
standard
deviations
below
average
d)
2
standard
deviations
above
average
-
ANS-C)
2
standard
deviations
below
average
an
advantage
of
stemplots
over
histograms
is
that
a)
They
can
display
a
larger
data
set
b)
They
can
display
the
shape
of
the
distribution
c)
The
actual
data
values
can
be
recovered
from
the
graph
d)
It
more
clearly
shows
a
skew
-
ANS-c)
The
actual
data
values
can
be
recovered
from
the
graph
An
outlier
is
indicated
through
a
histogram
by
a)
A
really
tall
bar
b)
A
really
wide
bar
c)
A
bar
far
away
from
the
rest
of
the
bars
-
ANS-c)
A
bar
far
away
from
the
rest
of
the
bars
Approximately
fifty
percent
of
the
observations
will
be
at
or
above
the
A)
maximum.
B)
mean.
C)
median.
D)
third
quartile.
-
ANS-c)
median
Assume
IQ
scores
are
normally
distributed
with
a
mean
of
100
and
a
standard
deviation
of
15.
Find
the
standard
score
for
an
IQ
of
90.
0.67
0.94
-0.67
-0.94
-
ANS--0.67
Assume
IQ
scores
are
normally
distributed
with
a
mean
of
100
and
a
standard
deviation
of
15.
What
percent
of
IQ
scores
will
be
between
85
and
115?
68%
95%
99.7%
100%
-
ANS-68%
below
is
a
stemplot
of
the
scores
on
a
recent
statistics
test.
(Key:
8|2
=
82%)
4
|
9
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