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A reason for requiring a sample.

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12y ago

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How can you determine whether a sample is representative of a population?

Take a simple random sample.


When you draw a sample from a normal distribution what can you conclude about the sample distribution?

The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.


When dividing a population into subgroups so that a random sample from each subgroup can be collected?

simple random sampling


A sample selected in such a way that each members of the population has an equal probability of being chosen?

That is known as a simple random sample, or SRS.


Is there a bias in simple random sample?

In a simple random sample, every individual in the population has an equal chance of being selected, which minimizes bias. However, bias can still occur if the sample size is too small or if the sampling method is not truly random due to practical constraints, such as non-response or selection errors. External factors, like the timing of data collection, can also introduce bias. Thus, while simple random sampling aims to reduce bias, it is not entirely immune to it.

Related Questions

What is the difference between simple random sampling and systematic random sampling?

simple random sample is to select the sample in random method but systematic random sample is to select the sample in particular sequence (ie 1st 11th 21st 31st etc.)• Simple random sample requires that each individual is separately selected but systematic random sample does not selected separately.• In simple random sampling, for each k, each sample of size k has equal probability of being selected as a sample but it is not so in systematic random sampling.


What did the 1936 election demonstrate that a good poll needed?

The election of 1948 demonstrated that a good poll needed a later sample.


What is needed to have good poll?

random sample


How can you determine whether a sample is representative of a population?

Take a simple random sample.


What does SRS mean in statistics?

Simple Random Sample


When you draw a sample from a normal distribution what can you conclude about the sample distribution?

The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.


How do sampling methods effect the rigor of a study?

A sample needs to be random and if not a simple random sample of the whole population then a stratified random sample (there are different ways to stratify). Otherwise the study is a waste of time.


A way to collect survey data?

A simple random sample is good!


When dividing a population into subgroups so that a random sample from each subgroup can be collected?

simple random sampling


What You decide you want your sample to be representative of the population. Which sampling process would provide the most representative sample?

A simple random sample.


What sample selected in such a way that each member of the population has an equal probability of being included?

It is a simple random sample.


What is the preferred method to select a sample population?

simple random sampling method