Business Analytics Leave a Comment / By Admin / January 27, 2024 Welcome to your Business Analytics Exam You only have 30 minutes to answer the questions and you have two chances to answer. Name Email Business Phone Country City 1. In a dataset, the standard deviation is 5. If the mean is 20, what is the variance? 30 20 25 35 None 2. If a machine learning model has an accuracy of 85%, how many incorrect predictions were made out of 200 instances? 15 170 150 30 None 3. A company's revenue increased by 15% last year. If the revenue was $500,000, what is the new revenue? $575,000 $575,000 $525,000 None 4. What is a key challenge associated with big data in business analytics? Difficulty in handling large volumes of data Limited storage capacity Lack of data sources Low processing speed None 5. Which type of analytics focuses on understanding what happened in the past? Inferential analytics Predictive analytics Descriptive analytics Prescriptive analytics None 6. Which machine learning algorithm is commonly used for classification tasks? Decision trees Random forests Support vector machines All of the above None 7. What is the primary goal of business analytics? Creating data visualizations Leveraging data for business insights Implementing machine learning algorithms Generating reports None 8. What does EDA stand for in the context of business analytics? Efficient Data Analytics External Data Analysis Essential Data Assessment Exploratory Data Analysis None 9. If a dataset has values 15, 20, 25, 30, and 35, what is the median value? 30 35 27.5 25 None 10. In predictive analytics, what does regression analysis primarily aim to do? Identify outliers Optimize decision-making Classify data points Analyze relationships between variables None Time's upTime is Up!
