Math Problem Statement
Find the sample standard deviation. Round to the nearest tenth.
15 42 53 7 9 12 14 28 47
Question content area bottom
Part 1
A.
17.8
B.
29.1
C.
16.6
D.
15.8
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Standard Deviation
Variance
Formulas
Mean = (Sum of all data points) / (Number of data points)
Variance = Sum of squared differences from the mean / (n-1) for sample variance
Standard Deviation = Square root of variance
Theorems
Central Limit Theorem (implicitly related to why we use n-1 in sample variance)
Suitable Grade Level
Grades 9-12
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