D204 wgu stuvia - Study guides, Class notes & Summaries

Which type of stakeholder mapping technique would best be used for managing change and communication? - ANSWER-Direction of influence. This technique groups stakeholders by their direction of influence, and can be particularly helpful for managing change and communications What do vertical lines on a Gantt chart represent? - ANSWER-The limits of the allowable movement of floating tasks What is common law? - ANSWER-laws created by the courts, rules negligence Pathways to Data Analytics -...

What questions will data analytics consider improving 10% market share value to open new store in a different location? a. Get list of geographic areas b. Reduce staff pay by 10% c. Check compatible market value d. None of the above - ANSWER-C Check compatible market value A data set has K variables, and the classifying method has the following steps: compare levels on nearby data, assign a new case to a category of nearby beta, locate the case in a k-dimensional space, in which order sh...

Which of these is NOT a topic of interest for Discovery/Planning/Business Understanding? A. Project Scope B. Identify stakeholders and research questions/KPIs C. Build a data pipeline (ETL) D. Identify timeline, budget, and participants - ANSWER-C What is a potential problem to consider in the planning phase? A. Lack of clear focus on stakeholders, timeline, limitations, and budget B. Quality and type of data may make access more difficult C. Some cleaning techniques could dramatically...

WGU D204 Exam Questions and Answers WGU D204 Exam Questions and Answers What questions will data analytics consider improving 10% market share value to open new store in a different location? a. Get list of geographic areas b. Reduce staff pay by 10% c. Check compatible market value d. None of the above - ANSWER-C Check compatible market value A data set has K variables, and the classifying method has the following steps: compare levels on nearby data, assign a new case to a category...

Many versions but one proposed in this class: 1) Business Understanding 2) Data Acquisition 3) Data Cleaning 4) Data Exploration 5) Predictive Modeling 6) Data Mining/Machine Learning 7) Reporting and Visualization and loop back at this point - ANSWER-What are the phases of the data analytics life cycle proposed by WGU? This phase is also known as the discovery phase. During this phase, an analyst defines the major questions of interest that need to be answered, understand the needs o...

Identifying business needs - ANSWER-Which activity does an analyst perform in the discovery phase of the data analytics life cycle? a. Collecting Data b. Cleaning Data c. Identifying outliers d. Identifying business needs Data Exploration - ANSWER-In which phase of the data analytics life cycle does an analyst build a histogram? a. Data acquisition b. Data exploration c. Discovery d. Predictive modeling Exploratory data analysis - ANSWER-An analyst applies a statistical formula t...

What are the 7 steps of the data analytics journey? - ANSWER-Business Understanding (Discovery Phase) Data Acquisition (Data Collecting) Data Cleaning Data Exploration Predictive Modelling Data Mining Reporting & Visualization Define: discovery phase - ANSWER-Analyst defines the major questions of interest that need to be answered, needs of the stakeholders and assesses the resource constraints of the project Define: data acquisition (data collecting) - ANSWER-Frequently retrieved fr...

Business Understanding/ Discovery phase - ANSWER-An analyst defines the major questions of interest that need to be answered, determines the needs of the stakeholders, and assesses the resource constraints of the project. Define project outcomes. Data Acquisition - ANSWER-Collecting data phase. Data is collected and stored, for easy retrieval from a database, perhaps a component of a data warehouse, by using a language like SQL. Web scraping and surveys to acquire data. Data Cleaning - ANS...

Which type of stakeholder mapping technique would best be used for managing change and communication? - ANSWER-Direction of influence. This technique groups stakeholders by their direction of influence, and can be particularly helpful for managing change and communications What do vertical lines on a Gantt chart represent? - ANSWER-The limits of the allowable movement of floating tasks What is common law? - ANSWER-laws created by the courts, rules negligence Pathways to Data Analytics -...

Analyses for Data Science: Descriptive: - ANSWER-Humans are good at finding patterns, but limited bandwidth - so we need to narrow the data. Look at the data. 1) Visualize the data - graphs, histograms, bell curve 2) Compute Univariate Descriptive Statistics: mean (average), mode (most common), median (splits into two equal halves). So ONE Value. 3) Measures of association: connection between the variables in your data. Range: high and low, Quartiles, Variance, Standard Deviation, Correlation...