u930973931_answers Linear Regression Basics: What is the primary objective of linear regression? A. To classify data into different categories B. To predict continuous numeric values based on the relationship between variables C. To identify outliers in a dataset D. To visualize data patterns Answer: B In linear regression, what is the term used to represent the … Read more
What is Predictive Analytics? A. Analyzing past events and data B. Predicting future outcomes based on data patterns C. Descriptive statistical analysis D. Summarizing current data trends Answer: B Which statistical method is commonly used in Predictive Analytics for classification and regression? A. T-test B. ANOVA C. Linear regression D. Chi-square test Answer: C In … Read more
What is Power BI primarily used for? A. Creating spreadsheets B. Building databases C. Analyzing and visualizing data D. Writing SQL queries Answer: C Which of the following is NOT a component of Power BI? A. Power BI Desktop B. Power BI Service C. Power BI Excel D. Power BI Mobile Answer: C What file … Read more
What type of software is Tableau? A. Spreadsheet software B. Database management software C. Data visualization software D. Statistical analysis software Answer: C Which of the following is NOT a primary product offered by Tableau? A. Tableau Desktop B. Tableau Server C. Tableau Cloud D. Tableau Excel Answer: D What is the purpose of Tableau … Read more
What is the primary purpose of using a bar chart? A. Showing trends over time B. Comparing proportions of a whole C. Visualizing relationships between variables D. Displaying geographic data Answer: B Which visual technique is best for highlighting trends and patterns over time? A. Scatter plot B. Line chart C. Histogram D. Pie chart … Read more
What is the primary purpose of data visualization? A. To store data in a structured format B. To manipulate data for analysis C. To present data visually for easier understanding D. To clean and preprocess data Answer: C Which of the following types of charts is best suited for showing trends over time? A. Pie … Read more
1. What does the SQL command INSERT INTO do? A. Deletes data from a table B. Updates existing data in a table C. Adds new data into a table D. Retrieves data from a table Answer: C 2. Which SQL statement is used to delete data from a table? A. DELETE B. REMOVE C. ERASE … Read more
1. What does SQL stand for? A. Structured Query Language B. Sequential Query Language C. System Query Language D. Scripted Query Language Answer: A 2. Which SQL command is used to retrieve data from a database? A. GET B. QUERY C. SELECT D. RETRIEVE Answer: C 3. What does the SQL keyword “DISTINCT” do in … Read more
What is a database? A. A collection of files B. A collection of tables C. A collection of records D. A collection of data organized for rapid search and retrieval Answer: D Which of the following is not a type of database model? A. Hierarchical B. Relational C. Object-oriented D. Sequential Answer: D What does … Read more
What does SQL stand for? A. Simple Query Language B. Structured Query Language C. Standard Query Language D. Sequential Query Language Answer: B Which SQL command is used to retrieve data from a database? A. GET B. SELECT C. FETCH D. RETRIEVE Answer: B Which SQL command is used to update existing records in a … Read more