Answer:
The correct answer is:
Nonresponse bias (C.)
Step-by-step explanation:
Nonresponse bias in sampling is one that arises due to the unwillingness or inability of subjects in a population to participate in a survey.
Step-by-step explanation:
option number of b is write
Answer:
a=4 n=25
Step-by-step explanation:
5a+5=n
(a+n)-4+25
a+n=29
5(4)+5=n
20+5=25