
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]


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The school wants to understand students' knowledge about the prevention of influenza and has printed a number of questionnaires with 10 questions each (each question worth 1 point) for a survey in various classes. 5 students from both Class A and Class B of the first year were randomly selected to take the survey. The scores (in points) of the 5 students from Class A were: 4, 8, 9, 9, 10; the scores of the 5 students from Class B were: 6, 7, 8, 9, 10.  
(1) Please estimate which class, A or B, has more stable questionnaire scores;  
(II) If we consider the scores of the 5 students from Class B as a population and use a simple random sampling method to draw a sample of size 2, calculate the probability that the absolute difference between the sample mean and the population mean is less than 1.

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