MATH-202 Definitions and Formulas Questions With Complete Solutions

Statistics correct answer: Science of collecting, organizing, summarizing, and analyzing information to draw conclusions or answer questions. Acronym C-O-S-A Data correct answer: Information - observations of a variable No data vs Zero correct answer: No data = undefined; non existent Zero = 0 value Population (N) correct answer: The entire group being studied. Refer to as a capital N numerically Individual correct answer: A person or object that is a member of the population being studied Sample (n) correct answer: Subset of the population being studied. Refer to as a lowercase n numerically Statistic correct answer: Numerical summary of a sample Descriptive Statistics correct answer: Describe data through numerical summaries, tables, and graphs Inferential statistics correct answer: Uses methods that take a result from a sample, and extend it to the population, and measure the reliability of the result Parameter correct answer: Numerical summary of a population Process of Statistics correct answer: 1. Identify the research objective 2. Collect the data needed to answer the questions 3. Describe the data 4. Perform inference Variables correct answer: Characteristics of the individuals within the population Qualitative variable correct answer: Also known as categorical variables - allow for classification of individuals based on some attribute or characteristic Quantitative variable correct answer: Provide num