populations and sample inferences
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a population in statistics?
Back
A population is the entire group of individuals or items that we want to study or draw conclusions about.
2.
FLASHCARD QUESTION
Front
What is a sample in statistics?
Back
A sample is a subset of the population that is selected for analysis to make inferences about the population.
3.
FLASHCARD QUESTION
Front
What is a random sample?
Back
A random sample is a sample that is selected from the population in such a way that every individual has an equal chance of being chosen.
4.
FLASHCARD QUESTION
Front
Why is it important to have a random sample?
Back
A random sample helps to ensure that the results of a study are representative of the population, reducing bias.
5.
FLASHCARD QUESTION
Front
What is the difference between qualitative and quantitative data?
Back
Qualitative data describes characteristics or qualities (e.g., colors, flavors), while quantitative data involves numerical values (e.g., counts, measurements).
6.
FLASHCARD QUESTION
Front
What is an inference in statistics?
Back
An inference is a conclusion or prediction about a population based on information obtained from a sample.
7.
FLASHCARD QUESTION
Front
What does it mean to generalize results from a sample to a population?
Back
To generalize results means to apply findings from a sample to the larger population from which the sample was drawn.
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