WGU Intro to Probability and Statistics Solved Exam |Graded A+| Updated!!

WGU Intro to Probability and Statistics Solved Exam |Graded A+| Updated!! Population *Ans* The entire group that is the target of interest, not just people. Eg, "the population of 1 bedroom apartments" Sample *Ans* A subgroup of the population. Eg, "the 1 bedroom apartments with dishwashers." Steps in the statistics process *Ans* 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 *Ans* pieces of info about individuals organized into variables Individual *Ans* a particular person or object Variable *Ans* a particular characteristic of the individual Dataset *Ans* 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 *Ans* Quantitaive: Numerical values. Represent a measurement. Categorical: category or label values into which individuals are grouped. Three steps in Exploratory Data Analysis *Ans* 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 *Ans* exploring data obtained from one variable at a time Examining Relationships *Ans* exploring data obtained from two variables at a time Distribution *Ans* what values the variable takes, how often Three types of graphical displays of categorical distributions *Ans* 1. Pie Charts 2. Bar Charts 3. Pictogra