
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
There are 160 items in total, among which there are 48 first-grade items, 64 second-grade items, 3 equal-grade items, and 1 substandard item. Determine the relationship between the probabilities of each item being selected in the population using simple random sampling, stratified sampling, and systematic sampling.

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