
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
A sample of 5 apples is taken from a pile, and their weights are measured as follows (in grams): $125$, $124$, $121$, $123$, $127$. Calculate the standard deviation $s=$____ of this sample. (Round the answer to a whole number.)

Note: The standard deviation of sample data $x_{1}$, $x_{2}$, ..., $x_{n}$ is given by $s= \sqrt { \dfrac {1}{n}[(x_{1}- \overline {x})^{2}+(x_{2}- \overline {x})^{2}+...+(x_{n}- \overline {x})^{2}]}$, where $\overline {x}$ is the mean.

Present the answer in LaTex format: \boxed{Your answer}
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