
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
Given a dataset with a capacity of 20, with group intervals and frequencies of (10,20] 2, (20,30] 3, (30,40] 4, (40,50] 5, and (50,60] 4, and (60,70] 2, calculate the frequency of the sample in the interval (-∞, 50].

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