Introduction to Statistics

A _______ is a part of a the group we are interested in gathering data on that is being surveyed.

• Representative

• Population

• Sample

A _________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Bias

The process of gathering information/data from EACH member of the population.

• Census
• Interview
• Survey
• Questionnaire

_______ is the entire group of objects or individuals considered for a survey.

• Sample

• Quartile

• Random Sample

• Population

What is the difference between a sample and a population?

• Populations only consider a portion of the sample being studied.

• Samples only consider a portion of the population being studied.

• Populations do not always represent the entire group of people in question.

• Samples are generally much larger than populations.

What is a survey?

• process of collecting statistical data from a small group of a population

• Statistics collected from an entire population

• An element or feature that can vary

• A person chosen from a population

What is data?

• The practise of collecting and analysing data
• The factual information collected from a survey or other source 
• An element or feature that can vary
• A group chosen from a population

Data that are non-numerical values.

• Categorical Data

• Numerical Data

Which of the following is an example of categorical data?

• Age of Grade 7 Students

• Favorite subject of Grade 7 Students

Which of the following is an example of numerical data?

• Favorite color of Grade 7 Students

• Weight of Grade 7 Students