
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
In a frequency distribution histogram, there are a total of 11 rectangles. If the area of the middle rectangle equals the sum of the areas of the other 10 rectangles and the sample size is 160, then the frequency of the middle group is ______.

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