
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
The relevant departments want to understand the popularization of knowledge about the prevention of H1N1 influenza in schools, so they designed a questionnaire with 10 questions and conducted a survey in various schools. Two classes, A and B, from a certain middle school were randomly selected, with 5 students from each class participating in the survey. The scores of the 5 students in class A were: 5, 8, 9, 9, 9; the scores of the 5 students in class B were: 6, 7, 8, 9, 10.  
(Ⅰ) Please estimate which class, A or B, has more stable questionnaire scores;  
(Ⅱ) If we consider the scores of the 5 students in class B as a population and use a simple random sampling method to draw a sample with a size of 2, calculate the probability that the absolute difference between the sample mean and the population mean is not less than 1.

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