
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 January 2016, an appliance company surveyed 10 users of their products to investigate user satisfaction with their after-sales service. Users rated the company's after-sales service on a 10-point scale. Users with a score of at least 9.5 were considered satisfied, those with a score below 9 were considered unsatisfied, and those with other scores were considered basically satisfied. The scores of these 10 users were: 7.6, 8.3, 8.7, 8.9, 9.1, 9.2, 9.3, 9.4, 9.9, 10.
(I) Calculate the probability that the sum of the scores of a randomly selected unsatisfied user and a basically satisfied user exceeds 18.
(II) Calculate the probability that at least one of the two users is satisfied when two users are randomly selected from satisfied and basically satisfied users.

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