
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
Ms. Lin asked her online fitness group to report how many days last month they jogged for at least 20 minutes. The results are summarized in the following bar graph, where the heights of the bars indicate the number of participants:
- 5 participants for 1 day
- 4 participants for 3 days
- 10 participants for 5 days
- 7 participants for 10 days
- 3 participants for 15 days
- 1 participant for 20 days

What was the mean number of days of jogging last month, rounded to the nearest hundredth, reported by the participants in Ms. Lin's fitness group?
A) 3.40
B) 4.50
C) 5.56
D) 6.73
E) 7.25

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