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Standard Deviation
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Standard Deviation
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3. Describing Data Numerically / Standard Deviation / Problem 3
Problem 3
A quality engineer measures the thickness (in
mm
\text{mm}
) of six metal sheets:
12
12
,
15
15
,
14
14
,
11
11
,
13
13
, and
16
16
. Find the sample standard deviation.
A
2
\sqrt2
B
14
2
\frac{\sqrt{14}}{2}
C
1.50
1.50
D
2.25
2.25
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