I am a bit confused and am trying to figure how some of this stuff works

1)How wo.uld I use d.ouble prec.ision to get the value of 010000000111111010111001 (in five dec places)

2)How wo.uld I get the result of it using 3 digt chop arthmetic

3)how wo.uld I get it u.sing 3 digt ronding arthmetic

4)How wu.ld I cmpute the abslute and reltive eror frm the first que.stion and the 3 dig.it rundin.g.

(In Python code)