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