Edexcel AS Level Maths Statistics Questions and Expert Answers the Latest Version

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Edexcel AS Level Maths Statistics
Questions and Expert Answers the
Latest Version

Question: Population


Answer: The whole set of items that are of interest


Question: Census


Answer: Observes or measures every member of a population


Question: Advantages of a census


Answer: It should give a completely accurate result


Question: Disadvantage of a census


Answer: Time consuming and expensive


Hard to process large quantity of data


Question: Sample


Answer: A selection of observations taken from a subset of the population
which is used to find out information about the population as a whole

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Question: Advantages of a sample


Answer: Less time consuming


Fewer people have to respond


Less data than a census


Question: Disadvantage of a sample


Answer: The data may not be as accurate


The data may not be large enough toggle information about the population


Question: Sampling Units


Answer: Individual units of a population


Question: Sampling Frame


Answer: A list of individually named or numbered sampling units


Question: Simple Random Sample


Answer: A sample where every sampling unit has an equal chance of being
chosen


Question: Advantages of Simple Random Sample