Sampling

Yesterday we had a discussion about sampling.

- what is a sample?

A sample is a small amount of the population

- why take a sample?

You take a sample because it is quicker and safer.

- what are some examples of sampling done irl?

E.G. At a Cookie time factory a sample of cookies were taken to test how much sugar they had in them

- what does the word ‘population’ mean?

The population is all of the things you are testing. E.G. All of the cookies at Cookie Time.

- how can you tell if are you sampling the right population?

Ask your self if it is fair or bias. If bias change the sample

- what sized sample is representative?

It is you many samples you need to take. E.G. 31 would be 22. I found this using this

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