Edexcel AS Level Maths Statistics ACTUAL EXAM
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
Population - (ANSWER)The whole set of items that are of interest
Census - (ANSWER)Observes or measures every member of a population
Advantages of a census - (ANSWER)It should give a completely accurate result
Disadvantage of a census - (ANSWER)Time consuming and expensive
Hard to process large quantity of data
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
Advantages of a sample - (ANSWER)Less time consuming
Fewer people have to respond
Less data than a census
Disadvantage of a sample - (ANSWER)The data may not be as accurate
The data may not be large enough toggle information about the population
Sampling Units - (ANSWER)Individual units of a population
, Sampling Frame - (ANSWER)A list of individually named or numbered sampling
units
Simple Random Sample - (ANSWER)A sample where every sampling unit has an
equal chance of being chosen
Advantages of Simple Random Sample - (ANSWER)Free of bias
Easy and cheap to implement
Each sampling unit has equal chance of selection
Disadvantage of Simple Random Sample - (ANSWER)A sampling frame is needed
Not suitable when the population size is very big
Systematic Sampling - (ANSWER)A method of sampling where the required
elements are chosen at regular intervals from an ordered list
Advantages of Systematic Sampling - (ANSWER)Simple and quick to use
Suitable for large samples
Disadvantages of Systematic Sampling - (ANSWER)A sampling frame is needed
It can introduce bias if sampling frame is not random
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
Population - (ANSWER)The whole set of items that are of interest
Census - (ANSWER)Observes or measures every member of a population
Advantages of a census - (ANSWER)It should give a completely accurate result
Disadvantage of a census - (ANSWER)Time consuming and expensive
Hard to process large quantity of data
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
Advantages of a sample - (ANSWER)Less time consuming
Fewer people have to respond
Less data than a census
Disadvantage of a sample - (ANSWER)The data may not be as accurate
The data may not be large enough toggle information about the population
Sampling Units - (ANSWER)Individual units of a population
, Sampling Frame - (ANSWER)A list of individually named or numbered sampling
units
Simple Random Sample - (ANSWER)A sample where every sampling unit has an
equal chance of being chosen
Advantages of Simple Random Sample - (ANSWER)Free of bias
Easy and cheap to implement
Each sampling unit has equal chance of selection
Disadvantage of Simple Random Sample - (ANSWER)A sampling frame is needed
Not suitable when the population size is very big
Systematic Sampling - (ANSWER)A method of sampling where the required
elements are chosen at regular intervals from an ordered list
Advantages of Systematic Sampling - (ANSWER)Simple and quick to use
Suitable for large samples
Disadvantages of Systematic Sampling - (ANSWER)A sampling frame is needed
It can introduce bias if sampling frame is not random
