Testbank OCR AS Level Maths A June 2026 Paper 1 H230-01 QP Pure Maths Statistics

OCR AS LEVEL MATHS
A JUNE 2026 PAPER 1
QP PURE MATHS AND
STATISTICS.pdf

Random Sample - answer-Assign a number to each member of the population then use
a random number generator to choose a random selection of numbers.

Biased Sample - answer-One that doesn't represent the whole representation. A small
sample is more likely to be biased

Primary Data - answer-Data that you have collected yourself

Secondary Data - answer-Data from any source but yourself

Qualitative data - answer-Descriptive data

Quantitive data - answer-Numerical data

Discrete data - answer-Number can only take certain values (ie integers)

Continuous data - answer-Numbers can take any value

Census - answer-A sample which includes every member of the population

Sample - answer-A subset of the population

Simple random sampling - answer-Any group of individuals are equally likely to be
chosen as one another

Stratified sampling - answer-Population is divided into groups called strata

Quota sampling - answer-Sample taken from each stratum is random but by specific
properties