I’m learning Python and working with a list of lists where each inner list contains numeric values.

Example:

scores = [
    [80, 90, 85],
    [75, 88, 92],
    [90, 85, 80]
]

Each inner list represents values for one item, and I want to:

• Compute the average of each inner list

• Find which inner list has the highest average

• Return its index (0-based)

If two or more averages are the same, I want to return the smallest index.

I know how to calculate an average, but I’m not sure what the cleanest way is to compare all of them while keeping track of the index. Any beginner-friendly approach would be appreciated.