średnia pand kolumnowych
df["Column"].mean()
Naughty Nightingale
df["Column"].mean()
df['mean'] = df.iloc[:, 0:4].mean(axis=1)
df['mean'] = df.iloc[:, [0,1,2,3,4].mean(axis=1)
DataFrame.mean(axis=None, skipna=None, level=None, numeric_only=None, **kwargs)
DataFrame.mean()