math terminology

Question 1

Hypothesis

Answer 1

a statement that is either true or false

Question 2

Statistics

Answer 2

is a collection, organization, and analysis of numerical data

Question 3

Primary data

Answer 3

comes from experiments and surveys done by researchers

Question 4

Secondary Data

Answer 4

comes from sources like Internet, publications, and surveys done by Statistics Canada

Question 5

Population

Answer 5

the whole group of people or items being studied

Question 6

Sample

Answer 6

Any group of people or items being selected from a population

Question 7

Census

Answer 7

A survey of all members of a population

Question 8

Simple random sampling

Answer 8

choosing a specific number of people randomly from the entire population

Question 9

Systematic Random Sampling

Answer 9

choosing the first member randomly and then choosing the remaining members of a population at fixed intervals from the random starting point

Question 10

Stratified Sampling

Answer 10

Dividing the population into distinct groups and then choosing the same fraction of members from each group

Question 11

Non-random sampling

Answer 11

non-random method of choosing a sample from the population. It is cheaper and convenient, but results are not accurate.

Question 12

Bias

Answer 12

error resulting when sample does not accurately represent the entire population