what are the two different types of numerical data
What is continuous data and discrete data
100
What is population
What is All individuals who belong to a group being studied
100
What is difference between observational and experimental experiments
Observational experiment look at situations already occurring and Experimental experiments control what's going on
100
What is primary data?
Data collected by a researcher directly
100
What is sampling bias
When the sample does not closely represent the population
200
What is categorical (qualitative) data?
What is ordinal data and nominal data
200
Difference between sample and population
Population is all individuals of a group whereas sample is individuals selected from a population to be studied
200
What is a treatment group
What is the participants that receive treatment
200
What is microdata?
An individual set of data about a single respondent
200
What is non-response bias?
When the opinions of respondents differ in meaningful ways from those of non-respondents
300
Blue eyes, green eyes, or brown eyes
What is Nominal data
300
Why do we sample?
TIME and MONEY
300
What is a control group
The participants in an experiment that don't receive treatment
300
What is aggregate data?
Summary of responses/combined data
300
Identify the type of bias: A survey question asks "how many words per minute can you read?"
Response bias
400
Identify the type of data: A survey asks people to rate how concerned they are with internet privacy on a scale where 1 is not concerned and 5 is very concerned
Categorical, ordinal data
400
What is variability?
The less variability you have in your samples, the closer your sample will resemble the population
400
Three things you need for an experiment to occur:
Control, randomization and replication
400
Identify the data sources: Data collected from stats canada
What is Secondary data
400
What is measurement bias?
Results from a data collection method that consistently either under or over- estimates a characteristic of the population
500
What is another term for qualitative data
Categorical
500
Identify the type of sampling: Conducting an online poll asking people whether banning junk food in schools will fight obesity
What is a voluntary sample
500
A researcher interviews people as they leave the gym and finds that they get fewer colds compared to people who do not go to gym. Is the observational or experimental?
Observational since no variables were controlled
500
Identify the type of data: The height of each person in your class
What is micro data
500
Is this a leading or loaded question: Should the mayor fix the dirty, potholed streets in the city?