Interpreting Data Distributions and Outliers
Statistics and Probability · Flashcards · Application
STATISTICS AND PROBABILITY · FLASHCARDS
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QUESTION
Given
Q
1
=
10
Q_1=10
Q
1
=
10
,
Q
3
=
18
Q_3=18
Q
3
=
18
, what is
I
Q
R
IQR
I
QR
?
QUESTION
Two boxplots have equal medians, but Plot A has larger
I
Q
R
IQR
I
QR
than Plot B; which has greater spread?
QUESTION
Given fences
−
2
-2
−
2
and
30
30
30
, is
x
=
31
x=31
x
=
31
an outlier by the
1.5
I
Q
R
1.5IQR
1.5
I
QR
rule (yes or no)?
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ANSWER
Yes, because
31
>
30
31>30
31
>
30
. Value exceeds upper fence of
30
30
30
.
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