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 35 25 None 2. If a dataset has values 15, 20, 25, 30, and 35, what is the median value? 27.5 25 35 30 None 3. In predictive analytics, what does regression analysis primarily aim to do? Classify data points Identify outliers Optimize decision-making Analyze relationships between variables None 4. 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 5. What is a key challenge associated with big data in business analytics? Low processing speed Lack of data sources Difficulty in handling large volumes of data Limited storage capacity None 6. What does EDA stand for in the context of business analytics? Exploratory Data Analysis Essential Data Assessment External Data Analysis Efficient Data Analytics None 7. Which type of analytics focuses on understanding what happened in the past? Inferential analytics Prescriptive analytics Predictive analytics Descriptive analytics None 8. Which machine learning algorithm is commonly used for classification tasks? All of the above Support vector machines Random forests Decision trees None 9. If a machine learning model has an accuracy of 85%, how many incorrect predictions were made out of 200 instances? 150 30 15 170 None 10. What is the primary goal of business analytics? Creating data visualizations Leveraging data for business insights Implementing machine learning algorithms Generating reports None Time's upTime is Up!
