Question
Which of the following best describes the main objective
of predictive analytics in healthcare, particularly in the context of improving patient care?Solution
Predictive analytics in healthcare primarily aims to forecast patient outcomes, such as disease progression, recovery times, and potential complications. By leveraging data, including medical history, genetic information, lifestyle factors, and treatment responses, predictive models can offer personalized treatment plans and allow healthcare providers to intervene before conditions worsen. The goal is to provide timely interventions that improve patient outcomes, reduce unnecessary hospital admissions, and optimize recovery paths. While classification and resource optimization are important, the central aim in healthcare analytics remains the prediction of individual patient trajectories for better care management. Why Other Options Are Incorrect: • A: Classifying patients into risk categories is a part of predictive analytics, but the main objective is to predict specific patient outcomes based on data, rather than just categorization. • C: While predicting healthcare costs is an important aspect of healthcare analytics, it does not directly contribute to improving individual patient care. • D: Optimizing hospital resource allocation is crucial for efficiency, but predictive analytics in healthcare is more concerned with patient-specific outcomes rather than logistical or resource issues. • E: Analyzing historical data for research purposes can help improve healthcare, but predictive analytics focuses on future patient outcomes rather than retrospective research.
Which of the following best describes the primary function of a database index?
In a snowflake schema of a data warehouse, which of the following consequences is most likely as a result of normalization of dimension tables?
In a data warehouse, a fact table typically contains:
Which OLAP operation rotates the data axes to provide an alternative presentation?
Which of the following is NOT a characteristic of OLAP systems?
A surrogate key is:
Which OLAP operation summarizes data along a dimension?
Which type of OLAP allows operations on pre-aggregated data cubes?
Which of the following best describes a Data Warehouse?
Which type of OLAP allows analysis of multidimensional data stored in relational databases?