
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 data with a capacity of 20 is grouped, and the group intervals and frequencies are as follows: [10, 20), 2; [20, 30), 3; [30, 40), 4; [40, 50), 5; [50, 60), 4; [60, 70], 2. What is the frequency of the sample data in the interval [50, +∞)?

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