
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
From a large batch of finished products, 5 items are randomly selected for quality inspection. If the defect rate of this batch of products is 0.05, and the random variable $X$ represents the number of qualified products among these 5 items, then the mathematical expectation $E(X)=$ ___.

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