Question

sample study is useful ​

Answer 1

Answer:

hope it's helpful marks me at brainlist

Explanation:

Sampling saves money by allowing researchers to gather the same answers from a sample that they would receive from the population. Non-random sampling is significantly cheaper than random sampling, because it lowers the cost associated with finding people and collecting data from them

Answer 2

Answer:

heard study

I am hard worker

please mark to me brinalist