Pearson Edexcel AS
and A Level
Mathematics, New
Spec 2026, Pure
Mathematics Year
1(AS) Unit Test 1:
Algebra and Functions
QUESTIONS AND
MARKSCHEME
Population - answer-The whole set of items that are of interest
Census - answer-Observes or measures every member of a population
Sample - answer-Selection of observations taken from a subset of the population
Sampling unit - answer-An individual item of a population
Sampling frame - answer-A unique numbering or naming of sampling units to form a list
Simple random sample - answer-Random sampling technique in which every member
of the population has an equal chance of being selected
Systematic sampling - answer-Random sampling technique in which elements are
chosen at regular intervals from an ordered list
and A Level
Mathematics, New
Spec 2026, Pure
Mathematics Year
1(AS) Unit Test 1:
Algebra and Functions
QUESTIONS AND
MARKSCHEME
Population - answer-The whole set of items that are of interest
Census - answer-Observes or measures every member of a population
Sample - answer-Selection of observations taken from a subset of the population
Sampling unit - answer-An individual item of a population
Sampling frame - answer-A unique numbering or naming of sampling units to form a list
Simple random sample - answer-Random sampling technique in which every member
of the population has an equal chance of being selected
Systematic sampling - answer-Random sampling technique in which elements are
chosen at regular intervals from an ordered list
