
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 certain school conducted a survey using stratified random sampling to determine the average weekly exercise time (in hours) of first-year students. The sample data obtained is as follows:

| Gender | Number of Samples | Sample Mean |
|--------|-------------------|-------------|
| Male   | 20                | 12          |
| Female | 30                | 10          |

Find the total sample mean.

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