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Statistics Basics: Descriptive and Inferential Statistics

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Statistics Basics: Descriptive and Inferential Statistics

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Questions and Answers

What is the primary purpose of Inferential Statistics?

To make conclusions and decisions about the population based on a sample (correct)

To identify the variables that do not change over time

To describe the collected data in a scientific way

To collect and analyze data from the entire population

What is the term for the process of examining the entire population?

Parameter Estimation

Data Collection

Sampling

Census Survey (correct)

What is the definition of a population?

A descriptive measure computed from the sample

A subset of the population selected to draw a conclusion

A certain characteristic that changes from object to object and time to time

The totality of things, objects, peoples, etc. about which information is being collected (correct)

What is the purpose of Descriptive Statistics?

To describe the collected data in a scientific way Signup and view all the answers

What is the term for a characteristic that changes from object to object and time to time?

Variable Signup and view all the answers

What is the definition of Data?

A collection of related facts and figures from which conclusions can be drawn Signup and view all the answers

What type of data is collected on variables that cannot assume a numerical value but can be classified into two or more non-numerical categories?

Qualitative data Signup and view all the answers

Which type of variable can assume any numerical value over a certain interval or intervals?

Continuous variable Signup and view all the answers

What is the primary purpose of collecting statistical data?

To analyze and summarize data for further investigation Signup and view all the answers

Which type of data is collected at the same or approximately the same point in time?

Cross-Sectional Data Signup and view all the answers

What is the primary difference between nominal data and ordinal data?

Nominal data has no ranking or order, while ordinal data can be ranked Signup and view all the answers

What is the purpose of a frequency distribution in summarizing categorical data?

To summarize the data into non-overlapping categories Signup and view all the answers