Lower cutoff of age:  -13.880374349943303
Upper cutoff of age:  73.27860964406094
     survived  pclass   sex   age  ...  deck  embark_town  alive alone
630         1       1  male  80.0  ...     A  Southampton    yes  True
851         0       3  male  74.0  ...   NaN  Southampton     no  True

[2 rows x 15 columns]
   survived  pclass     sex   age  ...  deck  embark_town  alive  alone
0         0       3    male  22.0  ...   NaN  Southampton     no  False
1         1       1  female  38.0  ...     C    Cherbourg    yes  False
2         1       3  female  26.0  ...   NaN  Southampton    yes   True
3         1       1  female  35.0  ...     C  Southampton    yes  False
4         0       3    male  35.0  ...   NaN  Southampton     no   True

[5 rows x 15 columns]

Here, we are also plotting a box plot on the age column of the dataset after removing the outliers. The box plot now looks like the following:

As we can see some outliers are removed. But, we still have some outliers after removing outliers using the mean and standard deviation of data, in this case.