The Notation for the Standard Deviation of the Sampling Distribution $\sigma _ { \bar { X } } \text { or } s _ { \bar { X } }$

Multiple Choice

The notation for the standard deviation of the sampling distribution of the sample mean is __________.

A) $\sigma _ { \bar { X } } \text { or } s _ { \bar { X } }$
B) ?x
C) $\sigma _ { \bar { X } / \mathbf { n } }$
D) ?