DATA CONCEPTS
SAMPLING vs. CENSUS
DATA COLLECTION
INTERPRETING DATA
BIAS
100
what are the two kinds of categorical data?
ordinal & nominal
100
The reasons we use a sample over a census.
What is time and money?
100
After determining your sample, you can collect data in two ways.
What is an Experiment or a Survey?
100
Data analyzed by you but collected by other sources.
What is SECONDARY DATA?
100
Bias occurs when ____________________ of the sample are not representative of the _____________________.
What are CHARACTERISTICS and POPULATION?
200
define ordinal data & give an example
data that can be ranked Ex. how was the movie you just watched? poor,fair,good, very good ( may vary)
200
Examples of two bad sampling techniques.
What are convenience sampling and voluntary sampling?
200
The two types of experiments used to collect data.
What are an Observational Study and an Experimental Study?
200
A chart stating the average height of the students in each homeroom of the school.
What is aggregate data?
200
Interviewer asks, "What is your favourite type of music: alternative, punk, or heavy metal?"
What is a LEADING QUESTION.....prompting an answer of a particular sector of music, while ignoring all others.
300
provide an example of continouous vs discrete data
Continouous- (ex. the timer at a basket ball game) Discrete- (Ex. number of people in Mrs. anderson class)
300
Researchers want to investigate the use of pesticides by apple farmers in Ontario. They divide the province into 10 sec tons and randomly choose 5. They then sample all farms within those five sections.
What is cluster sampling?
300
DAILY DOUBLE!!! The three key elements required of a good Experiment.
What are control, randomization, replication?
300
A list giving the exact height of each individual in the the classroom.
What is micro data.?
400
The type of data, and its subgroup, that is gathered when a survey asks, "How many hours of television do you watch during the week?"
What is numerical, continuous data?
400
The province wants to randomly choose 250 students. It randomly chooses five schools at each of those boards and then randomly chooses 50 students in each of those schools.
What is multistage sampling?
400
A researcher chooses two similar groups and has one group perform rigorous exercises once a day for 30 days, while the other group continues with their regular lifestyle. The exercise group is considered what type of group in this experiment?
What is the Treatment Group?
400
The relationship between an individual's age (years) and time (years).
What is, "As time increases, an individual's age also increases."?
400
Isn't it just terrible that the CLINTON lost the US election?
What is a Leading Question?
500
A survey question that solicits categorical, nominal data.
What is ....any question that has qualitative categories that cannot be ranked.
500
DAILY DOUBLE!!! A candy factory wants to do some quality control on its production line to see if it has the right proportion of each flavour in its coloured candy mix. (We are working with packages of candy on a conveyer belt)
What is ....SYSTEMATIC /SIMPLE RANDOM, depends on how justified?
500
Questions on surveys should be free of ________, clear and concise.
What is BIAS?
500
A rocket is launched at various angles to see what horizontal distance can be reached. The angle at which the rocket is launched is the _______________variable.
What is INDEPENDENT?
500
A radio hostess: "Many people say that guys that who don't pay for the first date are cheap and they are put in the friend zone immediately. Personally, I think a guy should be paying for the first date if they are worth sticking around for. Robert (caller into station), do you think that guys should be paying for the first date?"
What is a loaded question?
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