Calculate the Lack of Ambiguity

Nf = 25, Nnf = 5 and Nui = 10
Calculate the lack of ambiguity in the given requirement.

The numbers of requirements are calculated as:
nr = nf + nnf
where
nr – total number of requirements
nf – functional requirements
nnf – non-functional requirements
nr= 25+5= 30
Lack of ambiguity in the requirements is calculated as:
Q1 = nui/nr
Q1 = 10/30