
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 mathematics competition conducted at a school, the scores $X$ of all participating students approximately follow the normal distribution $N(70, 100)$. It is known that there are 16 students with scores of 90 and above (inclusive of 90).  
(1) What is the approximate total number of students who participated in the competition?  
(2) If the school plans to reward students who scored 80 and above (inclusive of 80), how many students are expected to receive a reward in this competition?  
Note: $P(|X-\mu| < \sigma)=0.683$, $P(|X-\mu| < 2\sigma)=0.954$, $P(|X-\mu| < 3\sigma)=0.997$.

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