Tuesday 3 June 2014

Sampling lesson

- what is a sample?
A sample is when you get a peace of information from people and other stuff

- why take a sample?
To find out what is happening in the world example: I am going to find out and see if the water is safe to drink

- what are some examples of sampling done irl?
What proportion of cars on the road have airbags?

- what does the word ‘population’ mean?
Population is when you collect a amount of people or things that you sample ask.

- how can you tell if are you sampling the right population?
Bias is when it is unfair and fair is the correct one cause you are testing more people then just one.
Survey question: Should the school uniform bottom half be changed to track pants?

Sample of population: Girls at TIS

Fair or bias 

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