How can I interpret the pandas quartiles?

Solution 1:

For anyone who might be running into a similar problem, I've found the answer:
There are only 207 values in my df with df.A == 0.00000001. However there are also some values which are just marginally bigger (e.g. maybe df.A == 0.0000000100000000001). Hence, even though those values are not exactly equal to 0.00000001, when I print the df or ask for df.A.describe() they are shown as 0.00000001, since the difference is so small.