The best sampling strategy would be a stratified sample.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
For this problem, the 4 different brands of the recorders must be considered, hence the buyers should be divided into groups, and a proportion of each group should be sampled, hence a stratified sample should be used.
More can be learned about sampling at brainly.com/question/25122507
#SPJ1
Answer:
( - infinity, 4) thats the range hope it helps.
Answer:
80
Step-by-step explanation:
I hope this will help. I was really calculating maybe keep on trying on A peice of paper.:)
Answer:
$0.41
Step-by-step explanation:
4.92 ÷ 12 = .41 (Look at drawing)