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STA 2023 CHAPTER 1 STUDY GUIDE (TERMS AND IMPORTANT POINTS 2 KNOW).
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STA 2023 CHAPTER 1 STUDY GUIDE (TERMS AND IMPORTANT POINTS 2 KNOW).
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STA 2023 CHAPTER 1STUDY GUIDE (TERMS
AND IMPORTANT
POINTS 2 KNOW)
statistics - Answer: Statistics is the science of collecting, analyzing, presenting, and interpreting data, as
well as making decisions based on such analyses
descriptive statistics - Answer: methods for organizing, displaying, and describing data by using tables,
graphs, and summary measures
inferential statistics - Answer: methods that use sample results to help make decisions or predictions
about a population
population - Answer: the set of all elements - people, items, objects, animals, etc. - whose characteristics
are under study
sample - Answer: a subset (or portion) of a population
Parameter - Answer: a numerical measure that represents a population
statistic - Answer: a numerical measure that represents a sample
Observation - Answer: the value of a variable for an element, a single piece of data (a datum)
Variable - Answer: a characteristic under study that assumes different values for different elements
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