Statistics Exam#1 Ch. 1-4 questions and 100% correct answers
The general process of gathering, organizing, summarizing, analyzing, and interpreting data to assist in making effective decisions is called: a. statistics b. descriptive statistics c. inferential statistics d. levels of measurement - correct answer a A sample is: a. at least 15 observations b. a group of people c. part of a population d. a set of frequencies - correct answer c The main purpose of inferential statistics is to: a. summarize data in a useful and informative manner b. estimate population characteristics based on a sample information c. determine if the data adequately represents the population d. gather or collect data - correct answer b The main purpose of descriptive statistics is to: a. summarize data in a useful and informative manner b. estimate a population characteristic based on a sample c. determine if the data adequately represents the population d. gather or collect data - correct answer a
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statistics exam1 ch 1 4
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