Understanding Data Analysis

What is the primary goal of data analysis?

• • A) To summarize past data only

• • To create attractive reports

• • To discover useful information and support decision-making

• To collect data only

Which type of data analytics answers the question, “What happened?”

• Descriptive analytics

• Predictive analytics

• Prescriptive analytics

• Diagnostic analytics

What is the main purpose of data cleaning in the data analysis process?

• • To gather more data

• • To remove errors and inconsistencies in the data

• • To increase the size of the dataset

• • To present final results

In predictive analytics, what is the focus of the analysis?

• • Finding causes of past events

• • Predicting what might happen in the future

• • Identifying current trends

• • Summarizing historical events only

Which of the following is NOT a benefit of data analysis for organizations?

• • Informed decision-making

• • Competitive advantage

• • Risk mitigation

• • Reduced data storage needs

Which type of data analytics focuses on answering the question, “Why did it happen?”

• Descriptive analytics

• Predictive analytics

• Prescriptive analytics

• Diagnostic analytics

Which of the following best describes prescriptive analytics?

• Analyzing past data to find patterns

• Making recommendations for future actions

• Identifying current trends in data

• Summarizing historical data

Which type of analytics is primarily concerned with predicting future outcomes based on historical data?

• Descriptive analytics

• Predictive analytics

• Prescriptive analytics

• Diagnostic analytics

What type of analytics is used to recommend actions based on data analysis?

• Descriptive analytics

• Predictive analytics

• Prescriptive analytics

• Diagnostic analytics

Which of the following questions does diagnostic analytics aim to answer?

• What is happening now?

• Why did it happen?

• What will happen next?

• What happened in the past?