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Feliz [49]
4 years ago
14

Can u help me please ?

Mathematics
1 answer:
harina [27]4 years ago
6 0
Check the attached file and let me know what you think.
Download docx
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The temperatures at 6:00 am one morning in four cities are given below.
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Whats 9+10 answer now or die
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In a school survey, three homerooms are chosen and 10 students from each homeroom are randomly chosen to complete the survey. Id
lesya [120]

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This sampling method used in this question is the stratified sampling method.

Step-by-step explanation:

There are about 5 known sampling methods.

- Random Sampling

In random sampling, each member of the population has an equal chance of being surveyed. All the students are given a number and random numbers are generated to pick the students to be surveyed.

- Systematic sampling

This is easier than random sampling. In systematic sampling, a particular number, n, is counted repeatedly and each of the nth student is picked to be sampled.

- Convenience Sampling

This is the worst sampling technique. It is also the easiest. In Convenience sampling, the surveyor just surveys the first set of students that they find.

- Cluster sampling

Cluster Sampling divides the population into groups which are called clusters or blocks. The clusters are selected randomly, and every element in the selected clusters is surveyed.

- Stratified Sampling

Stratified sampling divides the population into groups called strata. A sample is taken from all or some of these strata using either random, systematic, or convenience sampling. This is evidently the answer to the question as the students are divided into homerooms (strata) and samples are now randomly taken from 3 randomly selected strata.

Hope this Helps!!!

6 0
3 years ago
Can someone help me with this
Iteru [2.4K]
To solve this, set up a proportion. 72/21.6=110/x Cross multiply. 72x=2376. Solve x=33
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What is the maximum percentage of net spendable income that should be set aside for food?
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