
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 city conducted a sampling survey on the math scores (out of 100) of 10,000 middle school students and found that their scores approximately follow a normal distribution N(70, 10^2). If there are 230 students scoring above 90, calculate the number of students scoring between 50 and 90.

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