CSCC STATS LEARNING UNIT 1 WITH
QUESTIONS AND ANSWERS WELL
STRUCTURED FOR REVISION 2025
UPDATE
What is Population?
Answer: The entire collection of elements of interest, usually "all" of some specific group.
What is a Sample?
Answer: A subset of the population, usually noted by the number randomly selected.
What is a Parameter?
Answer: Measurement that comes from the entire population.
What is a Statistic?
Answer: Measurement that comes from the sample.
What is Descriptive Statistics?
Answer: Organizes, summarizes, or displays the collected (sample) data only.
What is Inferential Statistics?
Answer: Uses the descriptive statistics to make interpretations about the data, draw conclusions,
and make generalizations about the entire population or make predictions for the future.
What is an Experimental Study?
Answer: Apply a treatment and then observe its effects on the subjects. Control groups are used
for comparison purposes.
, Can you provide an example of Experimental Studies?
Answer:
Determine the effects of a new drug on cancer patients (compared to a group that
receives a placebo).
Determine the effects of rewarding with dog treats while dog training.
What is an Observational Study?
Answer: Observes and measures specific characteristics, without modifying (imposing
treatments on) the subject.
Can you provide examples of Observational Studies?
Answer:
Use food journal to log eating habits for a month.
Record game stats during a sports game.
What are the Data Collection Methods?
Answer:
1. Experiment
2. Simulation
3. Census
4. Sampling
What is an Experiment?
Answer: Impose some treatment and then record the response.
What is Simulation?
Answer: Model an event using computers to imitate "real life."
QUESTIONS AND ANSWERS WELL
STRUCTURED FOR REVISION 2025
UPDATE
What is Population?
Answer: The entire collection of elements of interest, usually "all" of some specific group.
What is a Sample?
Answer: A subset of the population, usually noted by the number randomly selected.
What is a Parameter?
Answer: Measurement that comes from the entire population.
What is a Statistic?
Answer: Measurement that comes from the sample.
What is Descriptive Statistics?
Answer: Organizes, summarizes, or displays the collected (sample) data only.
What is Inferential Statistics?
Answer: Uses the descriptive statistics to make interpretations about the data, draw conclusions,
and make generalizations about the entire population or make predictions for the future.
What is an Experimental Study?
Answer: Apply a treatment and then observe its effects on the subjects. Control groups are used
for comparison purposes.
, Can you provide an example of Experimental Studies?
Answer:
Determine the effects of a new drug on cancer patients (compared to a group that
receives a placebo).
Determine the effects of rewarding with dog treats while dog training.
What is an Observational Study?
Answer: Observes and measures specific characteristics, without modifying (imposing
treatments on) the subject.
Can you provide examples of Observational Studies?
Answer:
Use food journal to log eating habits for a month.
Record game stats during a sports game.
What are the Data Collection Methods?
Answer:
1. Experiment
2. Simulation
3. Census
4. Sampling
What is an Experiment?
Answer: Impose some treatment and then record the response.
What is Simulation?
Answer: Model an event using computers to imitate "real life."
