What Is the Correct Formula for Calculating the Standard Deviation $\sqrt { \frac { \sum ( X - M ) } { ( N - 1 ) } }$

question 42

Multiple Choice

What is the correct formula for calculating the standard deviation of a sample when one is NOT trying to estimate the population standard deviation?

• A) \(\sqrt { \frac { \sum ( X - M ) } { ( N - 1 ) } }\)
• B) \(\sqrt { \frac { \sum ( X - M ) ^ { 2 } } { ( N - 1 ) } }\)
• C) \(\sqrt { \frac { \sum ( X - M ) ^ { 2 } } { N } }\)
• D) \(\frac { \sqrt { \sum ( X - M ) ^ { 2 } } } { N - 1 }\)

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