Q8A & Q8B: Using the castaway_details data, what is the percentage of total extroverts and introverts that have played the game (count players only once even if they have played in more than one season). Do not count contestants without a personality type listed in your calculations. Save these percentages as Q8A and Q8B respectively. Note: Round all percentages to two decimal points and write as a float (example: 55.57) using python code

To calculate the percentage of total extroverts and introverts who have played the game, we need to first filter out the contestants without a personality type listed. Then, we can calculate the percentage by dividing the count of extroverts/introverts by the total number of players.

Here is the Python code to calculate these percentages:

```python
import pandas as pd

# Read the castaway_details data into a pandas dataframe
castaway_details = pd.read_csv('castaway_details.csv')

# Filter out contestants without a personality type listed
filtered_castaways = castaway_details.dropna(subset=['personality_type'])

# Calculate the percentage of extroverts
extroverts_count = filtered_castaways['personality_type'].str.contains('E').sum()
total_players = filtered_castaways['name'].nunique()
Q8A = round((extroverts_count / total_players) * 100, 2)

# Calculate the percentage of introverts
introverts_count = filtered_castaways['personality_type'].str.contains('I').sum()
Q8B = round((introverts_count / total_players) * 100, 2)

print("Percentage of total extroverts:", Q8A)
print("Percentage of total introverts:", Q8B)
```

Note: Ensure that the file name and the column names in the code match your dataset.

To calculate the percentage of total extroverts and introverts that have played the game (counting players only once even if they have played in more than one season), you can follow these steps using Python:

1. Import the necessary libraries:
```python
import pandas as pd
```

2. Read the "castaway_details" data into a DataFrame:
```python
castaway_details = pd.read_csv('castaway_details.csv')
```

3. Filter out the contestants without a personality type listed:
```python
filtered_data = castaway_details.dropna(subset=['personality_type'])
```

4. Count the number of players (unique individuals) for each personality type:
```python
unique_players = filtered_data['player_name'].nunique()
extroverts = filtered_data[filtered_data['personality_type'] == 'extrovert']['player_name'].nunique()
introverts = filtered_data[filtered_data['personality_type'] == 'introvert']['player_name'].nunique()
```

5. Calculate the percentages:
```python
Q8A = (extroverts / unique_players) * 100
Q8B = (introverts / unique_players) * 100
```

6. Round the percentages to two decimal points and save them as floats:
```python
Q8A = round(Q8A, 2)
Q8B = round(Q8B, 2)
```

The final values of Q8A and Q8B will be the rounded percentages of total extroverts and introverts, respectively, that have played the game.