C. (–2, –2), (1, 7), (0, 4) is the correct answer. All three solutions match.
Answer:
Step-by-step explanation:
Natral whole rational irrational
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
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Answer:
7000
Step-by-step explanation:
I think this is the answer
Then the number must be between 18² = 324 and 19² = 361. But is that what you want to know?
