WGU - C743 - Data mining bundled exams 2023 with 100% correct answers

Bivariate Statistics - Use of Contingency Table correct answersUsed to detect incompatibilities between variables, links between the dependent ('target') variable and the independent variables and their interactions, in order to eliminate the variables having no effect on the dependent variable; ...

Predictive methods are grouped as ____ techniques when the dependent variable is binary or discrete correct answersclassification Predictive methods are grouped as ____ techniques when the dependent variable is continuous. correct answerspredictive The use of previously observed events and the...

Types of Data Mining correct answersDescriptive (exploratory) Predictive (Explanatory) Text Phases of Data Mining correct answers1) define aims 2) list existing data 3) collect data 4) explore and prepare data 5) segment pop 6) draw up and validate predictive models 7) deploy Models 8) t...

Cramer V Test - Used to indicate how strongly associated two different categorical/nominal variables are with each other. - Based on Pearson Chi-Square statistic - Test is performed on contingency tables - Cramer's V value is between 0 & 1. - Values closer to 0 indicate little association betw...