WGU Intro to Probability and Statistics Questions & Answers 100% Correct(GRADED A+)

Population - ANSWER-The entire group that is the target of interest, not just people. Eg, "the population of 1 bedroom apartments" Sample - ANSWER-A subgroup of the population. Eg, "the 1 bedroom apartments with dishwashers." Steps in the statistics process - ANSWER-1. PRODUCE DATA (by studying a sample of the population) 2. EXPLORATORY DATA ANALYSIS (Summarize data.) 3. PROBABILITY ANALYSIS (Determine how the sample may differ from the population.) 4. INFERENCE (draw conclusions) Data - ANSWER-pieces of info about individuals organized into variables Individual - ANSWER-a particular person or object Variable - ANSWER-a particular characteristic of the individual Dataset - ANSWER-a set of data identified with particular circumstances. Typically displayed in tables with rows as the individuals and columns as the variables Quantitative vs Categorical/Qualitative variables - ANSWER-Quantitaive: Numerical values. Represent a measurement. Categorical: category or label values into which individuals are grouped. Three steps in Exploratory Data Analysis - ANSWER-1. Organize and SUMMARIZE raw data 2. DISCOVER important features and patterns and striking deviations. 3. INTERPRET findings in the context of the problem Examining Distributions - ANSWER-exploring data obtained from one variable at a time Examining Relationships - ANSWER-exploring data obtained from two variables at a time Distribution - ANSWER-what values the variable takes, how often Th