Only the second one
when diameter is 4 r=2
so 2pi*2=2²*pi the first is circumference the second area
Answer:
i need more details then this its not really explaining anything
Step-by-step explanation:
Answer: Convenience sample.
Step-by-step explanation:
Convenience sample is also known as grab or accident or opportunity samples. It is a example of non probability sample that involves selecting of subjects because of the proximity, convenience and accessibility a researcher as to them. This type of samples are not reliable for data gathering when it involves a very large sample space, let's say a global audience.
