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Data you have collected yourself
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| Collected by someone else |
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Data that uses words to describe it- not numbers
e.g: Favorite pizza topping |
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Anything that can be measured with a number
E.g: Heights
Quantitative data is either discrete or continuous |
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Data that can be measured exactly
E.g:Goals scored in a football match |
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Data that can take any value in an inteval
E.g:The height of a teenager |
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| Total of items/number of items |
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| Difference between the largest and smallest values |
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| where every member of a population has an equal chance of being chosen |
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| Gives different groups in the sample an amount of representation thats proportional to its population size |
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| Adding up the frequency as you go along |
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