Free WGU Data-Driven-Decision-Making Exam Dumps Questions & Answers

A political ballot gives voters the option to vote for one of three candidates. Eight voters cast their ballots.
Which statistical rule should be used to determine the possible voting outcomes?

• A.Combination
• B.Conditional probability
• C.Multiplication principle
• D.Bayes ' theorem

What was the cumulative incidence rate during Year 2 at the university?

• A.17.87%
• B.10.04%
• C.11.84%
• D.3.70%

An analyst used multiple linear regression to show how a big box store's sales (y) are predicted by the big box store's advertising expenditure in dollars (variable x1) and the advertising expenditure in dollars of a specialty store (variable x2) in the same market. The estimated regression is y = 651.57 + 92.30x1 # 26.89x2. How are advertising expenditures and sales related in this scenario?

• A.If the specialty store increases its advertising expenditures, it will decrease the big box store's sales.
• B.If the big box store decreases its advertising expenditures, its sales will increase.
• C.If the big box store increases its advertising expenditures, its sales will decrease.
• D.If the big box store decreases its advertising expenditures, it will decrease the big box store's sales.

How do analytics help an organization?

• A.They use data to persuade consumers.
• B.They assist with investment management.
• C.They increase employees' use of information systems.
• D.They develop fact-based strategies.

Which analytic used in healthcare is calculated as a proportion of new cases compared to person-time units?

• A.Prevalence
• B.Cumulative incidence
• C.Morbidity rate
• D.Incidence rate