
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 a certain high school's second-year class 1, there are 45 male students and 15 female students. The teacher formed a 4-person extracurricular interest group using stratified random sampling.

**(Ⅰ)** Calculate the probability of any student being selected for the group and the number of male and female students in the extracurricular interest group;

**(Ⅱ)** After a month of study and discussion, the interest group decided to select two students to conduct an experiment. The method is to first select one student from the group to perform the experiment. After that student finishes, another student is chosen from the remaining group to do the experiment. Calculate the probability that exactly one of the two selected students is a female;

**(Ⅲ)** After the experiment, the first student obtained experimental data of 68, 70, 71, 72, 74, while the second student obtained data of 69, 70, 70, 72, 74. Which student's experiment was more stable? Please explain your reasoning.

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