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WPC 300 Final Exam Practice questions and answers 2024/2025 latest

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In an agile approach of analytics what is the first step of the process? - CORRECT ANSWER-Perform business discovery In an ETL process, data is loaded into a final target database such as: - CORRECT ANSWER-Data warehouse What are the four types of data analytical method? - CORRECT ANSWER-Desc...

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  • May 24, 2024
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  • 2023/2024
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  • wpc 300 final exam practice questions and answers

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WPC 300 Final Exam Practice questions and answers 2024/2025 latest In an agile approach of analytics what is the first step of the process? - CORRECT ANSWER -Perform business discovery In an ETL process, data is loaded into a final target database such as: - CORRECT ANSWER -Data warehouse What are the four types of data analytical method? - CORRECT ANSWER -Descriptive, explanatory, predictive and prescriptive Which of the following is an example of secondary data? - CORRECT ANSWER -Firm's proprietary data Which of the following data analysis models use optimization techniques? - CORRECT ANSWER -Prescriptive analytics Predictive analytics may be applied to __________, which is a set of techniques that use descriptive data and forecasts to identify the decisions most likely to result in the best performance. - CORRECT ANSWER -Prescriptive analytics Target is examining their online sales data during the pandemic to understand what happened. Which kind of analytical technique are they using? - CORRECT ANSWER -
Descriptive analytics Costco wants to know how to stock their warehouses for a future pandemic and are using current sales data to help them project the needs. Which kind of analytical technique are they using? - CORRECT ANSWER -Predictive analytics Your professor is considering purchasing a self -driving car that can figure out the best route and the optimum safe way to drive there without human intervention. What kind of analytics is the car using to do this? - CORRECT ANSWER -Prescriptive analytics Which of the following question(s) can be better answered using data in order to reach an evidence -based conclusion? - CORRECT ANSWER -All of the answer selections are correct. Deleting the grid lines in a chart - CORRECT ANSWER -Increases the data -ink ratio When the lie -factor of a graphical chart is more than 1, - CORRECT ANSWER -the size of the effect shown in the graph is bigger than the actual effect in the data. Which are useful principles for data visualization? - CORRECT ANSWER -The graph suggests a possible true effect Which of the following statement(s) about charts is false? - CORRECT ANSWER -None of the other answers are false In order for a chart to have graphical integrity, the lie factor must be: - CORRECT ANSWER -close to 1 What best describes the nature of a rose diagram? - CORRECT ANSWER -Plots data using a circular historical plot In for a chart to minimize graphical complexity, the data -ink ratio must be: - CORRECT ANSWER -close to 1 Which of the following violates the principle of data visualization? - CORRECT ANSWER -The data -ink ratio should be higher than 1 Which of the following statement(s) about charts is true? - CORRECT ANSWER -Data ink can sometimes help tell a richer story Which of the following statements is a reason not to use a table for data visualization? - CORRECT ANSWER -Tables cannot easily show trends Standard deviation of a normal data distribution is a _______. - CORRECT ANSWER -
measure of data dispersion The difference between the first and third quartiles is referred to as the ____________. - CORRECT ANSWER -interquartile range Which of the following is an example of a sample? - CORRECT ANSWER -The number of IT employees out of all employees working in an office of Google Which of the following is an example of a measure of dispersion? - CORRECT ANSWER -variance Which of the following describes the standard deviation? - CORRECT ANSWER -It is the square root of the variance. The ________ is the observation that occurs most frequently. - CORRECT ANSWER -
mode For a normal distribution mean is _______ to median. - CORRECT ANSWER -equal Which of the following describes a positively skewed histogram? - CORRECT ANSWER -a histogram that tails off towards the right

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